We wrote this guide to help you understand what you can – and can’t – do in the office to troubleshoot Statim errors. If your question isn’t answered below, use our technical support form to get help from one of our technicians.

Screen says: “Refill reservoir” when reservoir is already full

This message can appear when you use “ultra pure” distilled water that is too pure for the Statim’s water sensor to detect. To correct this:

  • Try adding a SMALL splash of tap water, stir it in, and try again.
  • This problem can sometimes be resolved in the office by adjusting the settings on your Statim. Call us for assistance, and we will walk you through the process.
  • As a last resort, you can send us your Statim, and we will upgrade the water sensor, which will resolve the problem completely.

Water quality is not acceptable

This message is caused by one of two things: Your source water is bad, or a contaminant got into the reservoir. This can happen when chemicals such as cleaning solution gets into the reservoir. Note: It is virtually unheard of for a Statim water sensor to be defective!

  • First, double-check your source water. Statims require steam-process distilled water with less than 5 parts per million total dissolved solids.
  • If your are certain your source water is good, it is possible that a contaminant got into the reservoir. We recommend draining the reservoir, wiping the interior thoroughly with a wad of paper towels, then refilling with a fresh new bottle.

Tip: Never use cleaning solution to clean the reservoir! Even a small amount of cleaner residue can trigger a water quality error.


Statim Autoclave Cycle Faults

Finding your Statim’s software version number

Determining your software revision is very easy, as it appears on the display each time the Statim is powered on. To find your software revision:

  1. Turn the Statim off, then back on again.
  2. Quickly observe the display screen. The software information appears very briefly. See fig. 1
  3. Your software revision is the three numbers following the letter “R.”

For troubleshooting purposes, only the first number is relevant, so Statim troubleshooting guides will refer to software as 2xx, 4xx, 5xx, etc. For example, revisions 201, 202, and 204 are all “2xx” software.

How to find your Statim autoclave version number.
fig. 1: The last three numbers refers to your software revision number.

Technical cause

The cassette temperature failed to reach 95°C within a time-out period.

Our troubleshooting advice

A cycle fault 1 can only be caused by a large steam leak from the cassette/chamber. Consult our Guide to Cassette Leaks.

SciCan’s technical manual says
  1. Boiler does not heat up. No power to boiler. (Field Service Tech repair)
  2. Check thermal fuse. Using an ohmmeter check for continuity between J1-3& lower terminal on boiler. If you read less than 1-ohm thermal fuse is good. If thermal fuse checks good proceed to step3, if bad replace and check unit for proper operation. Test pump using pump tester. (Field Service Tech repair)
  3. Check resistance reading betweenJ1-3 & J1-4 should read approx. 11ohms. (Field Service Tech repair)
  4. Check for line voltage at terminals J1-3 & J1-4 during warm up. If the reading is good proceed to step 5,if bad, PCB (Printed Circuit Board) is defective. (Shop repair)
  5. Check for line voltage at boiler terminals. (Field Service Tech repair)
  6. An extremely large steam leak(Statim 5000). Replace cassette seal, lid or tray. (End user repair)
  7. An extremely large load (Statim 5000). (End user repair)
Technical cause

The cassette temperature failed to increase from 95°C to 100°C within a time-out period.

Our troubleshooting advice

A cycle fault 2 can only be caused by a large steam leak from the cassette/chamber. Consult our Guide to Cassette Leaks.

SciCan’s technical manual says
  1. Unit will normally have a major steam leak from the cassette. If cassette is leaking repair as needed. Replace cassette seal, lid or tray. (End user repair)
  2. If the cassette is not leaking, unit is reading incorrect chamber temperature. A calibration cassette is required to check chamber temperature. (Shop repair)
  3. An extremely large load (Statim 5000). (End user repair)

Note: The solenoid does not close until the chamber temperature reaches approx. 102°, therefore the solenoid will not cause this error message to appear.

Technical cause

The cassette has failed to pressurize and achieve a temperature of 110°C within a time-out period.

Our troubleshooting advice

A cycle fault 3 is caused by a steam leak, but there are many possible places where the leak may be occurring. Follow the steps below to find the source of the leak.

  1. Cassette leak. When the Statim is running, is steam or condensation visible above the cassette opening before the cycle fault 3 occurs? If yes, consult our Guide to Cassette Leaks.
  2. Leaking check valve. If your Statim is equipped with a biological filter, check for signs of water in the filter. The presence of water indicates that the check valve is leaking, which can cause a cycle fault 3. Solution: replace the check valve and the biological filter.
  3. Jammed solenoid valve. Insert the cassette and listen for the “click.” If you do not hear the usual click, the solenoid valve may be jammed open, causing the cycle fault 3. Solution: repair or replace the solenoid valve.
  4. Debris in the solenoid valve. Disassemble the solenoid valve (solenoid disassembly guide) and check for debris. This problem is especially common in orthodontic practices because small pieces or orthodontic wire tend to get caught in the valve.
SciCan’s technical manual says
  1. Check for visible steam leaks from the cassette. If the cassette is leaking repair as needed. Replace cassette seal, lid or tray. (End user repair)
  2. If no leaks are visible disassemble the solenoid valve and check for debris or the plunger sticking in the plunger tube. (Field Service Tech repair)
  3. Check for constant power to the solenoid. Measure AC voltage at J1-7 & J1-8, should be zero volts with cassette out of the unit and line voltage with cassette inserted in the unit. (Field Service Tech repair)
  4. Verify that the check valve and pressure relief valves are not leaking. (Field Service Tech repair)
Technical cause

The cassette has failed to achieve sterilization conditions within a time-out period of the chamber first reaching 110°C.

Our troubleshooting advice

This error is uncommon. If it occurs, refer to the troubleshooting instructions for cycle fault 3.

SciCan’s technical manual says

Refer to explanation for Cycle Fault #3.

2xx-4xx software versions

Technical cause

The software has detected a steam generator (boiler) temperature 5°C greater than the chamber, within 7.2 seconds after a purge during the sterilizing phase of a cycle.

Our troubleshooting advice

A cycle fault 6 is almost always caused by contamination in the boiler, which interferes with the boiler’s temperature sensor reading. Recalibrating the boiler is almost never effective, and we’ve found that replacing the boiler is the only solution for a cycle fault 6.

Note: “Reclaiming” the boiler with CLR is NOT recommend. This procedure was retracted by the MFR in the mid-90’s, but continues to circulate on the internet.

Treating the boiler with CLR can cause the boiler to leak from all of its threaded fittings, including the center joint.

SciCan’s technical manual says

Calibrate boiler. If problem persists replace and calibrate boiler. (Field Service Tech repair)

DO NOT clean boiler with CLR.


5xx software

Technical cause

5xx and higher software: The software has detected a Validation Thermocouple temperature 5°C greater than the chamber during the sterilizing phase of the cycle.

Our troubleshooting advice

5xx and higher software: We’ve found that a cycle fault 6 is usually caused by a bad circuit board. Troubleshooting is complex and difficult, and we recommend sending your Statim in for a shop repair. You can also try the steps below.

  1. Before proceeding with troubleshooting, calibrate the boiler (boiler calibration guide). There is a small chance this will resolve the cycle fault 6.
  2. Check for kinks in the exhaust tubing.
  3. Check for loose potentiometer: Start the Statim in calibration mode, but do not begin a calibration cycle (boiler calibration guide). This will display the current temperature readings for the chamber thermocouple (right) and the validation thermocouple (left). Gently wiggle the circuit board potentiometer labeled “TC-ADJ” ( image ). If the displayed temperature jumps by several degrees when the potentiometer is wiggled, the potentiometer is loose. Re-solder the potentiometer to the circuit board. Calibrate the chamber temperature and the boiler before returning the Statim to service.
  4. Check for defective circuit board: Start a normal sterilization cycle and observe the display. The display will show “pressurizing” until the Statim reaches sterilization temperature, at which point it will show “sterilizing.” Continue to watch the screen throughout the cycle. If at any point the Statim re-enters “pressurizing” mode, the circuit board is defective. Replace and calibrate the circuit board.
SciCan’s technical manual says
  1. Check for kinked or pinched exhaust tubing. (End user repair)
  2. Check for visible steam leaks from the cassette. If the cassette is leaking repair as needed. Replace cassette seal, lid or tray. (End user repair)
  3. Check the solenoid and make sure the plunger is not sticking. (Field Service Tech repair)
  4. Calibrate boiler (validation thermocouple). (Field Service Tech repair)

DO NOT clean boiler with CLR.

2xx-4xx software

Technical cause

The software has detected a steam generator (boiler) temperature 5°C less than the chamber, within 7.2 seconds after a purge during the sterilizing phase of a cycle.

Our troubleshooting advice

This is an uncommon cycle fault. It usually indicates a problem with the boiler, but problems with the water pump or circuit board may also be a factor. Due to the rarity of this cycle fault, we recommend sending the unit to our repair shop for advanced troubleshooting.

SciCan’s technical manual says
  1. Calibrate boiler. If problem persists replace and calibrate boiler. (Field Service Tech repair)

5xx software:

Technical cause

The software has detected a Validation Thermocouple temperature 5°C less than the chamber during the sterilizing phase of the cycle.

Our troubleshooting advice

A cycle fault 8 is almost always caused by a defective boiler and requires boiler replacement. However, there are a few things you can check first, just to be sure. Check the small duct at the back left corner of the cassette tray. If debris is blocking the vent, clean it ( image ). This can occur when plastic or rubber items are accidentally sterilized at high heat. The plastic can melt and then get caught in the vent, where it hardens. Other times, a small piece of paper may be blocking the vent, which is easier to clean out. If you can not clear the blockage from the vent, replace the tray.

Check the solenoid valve for debris (solenoid disassembly guide).

SciCan’s technical manual says
  1. Check for a clogged venturi in the left rear of the cassette tray. Clean as needed. (End user repair)
  2. Check the solenoid for debris and make sure the plunger is not sticking. (Field Service Tech repair)
  3. Calibrate boiler (validation thermocouple). (Field Service Tech repair)
Technical cause

The cassette temperature has failed to drop to 115°C during the Unwrapped or Wrapped Cycle or the temperature has failed to drop to 110°C during the Rubber and Plastics Cycle in the purge conditioning stage.

Our troubleshooting advice

Cycle fault 10 occurs when the Statim is having trouble venting. Follow SciCan’s troubleshooting advice for this error (below).

SciCan’s technical manual says
  1. Check for kinked or pinched exhaust tubing. (End user repair)
  2. Check for a clogged venturi in the left rear of the cassette tray ( image ). Clean as needed. (End user repair)
  3. Solenoid valve is failing to open. Disassemble and check that plunger slides smoothly in plunger tube (solenoid disassembly guide). (Field Service Tech repair)
  4. Check for power to solenoid. For this next step, you’ll need to see Statim’s voltage test points ( image ). Using a voltmeter check for line voltage at terminals J1-7 & J1-8 with the cassette inserted. If line voltage is present check for a magnetic field above the solenoid coil. The solenoid coil has a bridge rectifier built into it. To check the coil put your meter on the diode checking scale and read the resistance of the coil, then reverse the leads, the resistance should be approximately the same in both directions. (Field Service Tech repair)
Technical cause

The cassette temperature has failed to drop to 102°C within 60 seconds of the end of a cycle during venting.

Our troubleshooting advice

Cycle fault 11 occurs when the Statim is having trouble venting. Follow SciCan’s troubleshooting advice for this error (below).

SciCan’s technical manual says
  1. Check for kinked or pinched exhaust tubing. (End user repair)
  2. Check for a clogged venturi in the left rear of the cassette tray ( image ). Clean as needed. (End user repair)
  3. Solenoid valve is failing to open. Disassemble and check that plunger slides smoothly in plunger tube(solenoid disassembly guide). (Field Service Tech repair)
  4. Check for power to solenoid. For this next step, you’ll need to see Statim’s voltage test points ( image ). Using a voltmeter check for line voltage at terminals J1-7 & J1-8 with the cassette inserted. If line voltage is present check for a magnetic field above the solenoid coil. The solenoid coil has a bridge rectifier built into it. To check the coil put your meter on the diode checking scale and read the resistance of the coil, then reverse the leads, the resistance should be approximately the same in both directions. (Field Service Tech repair)
Technical cause

the circuit board has detected a short in one of the Statim’s thermocouples.

Our troubleshooting advice

A cycle fault 12 is almost always caused by the chamber temperature probe being bent or broken, causing a short. In rare cases, one of the other thermocouples may be shorted, or the exposed thermocouple leads may be shorted where they attach to the circuit board.

  1. Using a flashlight, check to see if the temperature probe at the back of the chamber is bent or broken ( image ). If yes, replace the probe and/or bracket (shop repair). If no, continue to step 2.
  2. Remove the cover and check that all thermocouple leads are securely connected to the circuit board. Ensure that the exposed leads are not touching each other or any other components on the circuit board ( image ).
  3. Using a multimeter, test the resistance at all thermocouple leads. Statims with software 5xx or higher will have three thermocouples: chamber, boiler, and validation. Earlier software revisions 1xx, 2xx, and 4xx will have two thermocouples: chamber and boiler. A normal resistance reading is about 7-10 ohm.
  4. If one of the readings is far out of range, replace the component to which the thermocouple is attached (boiler, probe bracket, or validation thermocouple assembly).
SciCan’s technical manual says
  1. Check thermocouples, they should read approximately 10 ohms at room temperature. (Shop repair)
Technical cause

The steam generator (boiler) temperature is above 171°C during the Sterilization phase of a cycle.

Our troubleshooting advice

Cycle fault 14 occurs when the boiler fails to cool down properly in mid-cycle. The usual culprits are a water pump allowing backflow, or intermittent voltage problems from the circuit board. Follow the steps below.

  1. Check pump output using a pump tester bottle. Clean the pump filters if necessary, or replace the in-line water filter, if equipped. A water pump with poor water output will usually trigger a cycle fault 16 rather than a cycle fault 14, but it’s a good idea to check this anyway before proceeding.
  2. Check for water pump backflow. A water pump allowing backflow is the most likely cause of a cycle fault 14. With the Statim cover off, start any cycle and wait until the unit reaches the sterilization stage of the cycle (display will read “sterilizing”). Closely observe the transparent water pump tube that leads to the boiler. Water should be flowing forward whenever the pump activates, but NEVER backward toward the pump. If you can’t tell for sure if this is occurring, wait until the cycle ends, then observe the water pump tube as soon as the air compressor activates. If the water pump is defective, the pressure from the air compressor will push water through the tube toward the water pump. If you observe this backflow at any time, replace the water pump.
  3. Check for excessive voltage to the boiler. If the circuit board is providing constant voltage the boiler (a known issue with Statims), a cycle fault 16 will normally occur, rather than a cycle fault 14. However, this voltage problem can also occur intermittently, rather than constantly, which can cause a cycle fault 14. This can be more difficult to troubleshoot. To test for this, remove the Statim cover and begin a normal sterilization cycle. For this next step, you’ll need to see Statim’s voltage test points ( image ). Using a multimeter, test for AC current at J1, port 3 and 4. When the “boiler” light bulb is illuminated, line voltage should be present. When the light bulb is not illuminated, voltage should not be present. If line voltage appears continuously at 3 and 4, even when the “boiler” light bulb is not illuminated, the circuit board is bad. Replace circuit board (shop repair).
  4. Intermittent loss of voltage to water pump. Remove the cover and start any sterilization cycle. Observe the small light bulb labeled “pump” on the circuit board. When the bulb illuminates, you should hear the water pump activate. If the bulb illuminates, and the water pump fails to activate, the circuit board is defective. Replace the circuit board (shop repair).
SciCan’s technical manual says
  1. Check pump using the Pump Tester Bottle. (Field Service Tech repair)
  2. If pump tests weak, clean the pump filters. (Field Service Tech repair)
  3. Calibrate boiler when pump is functioning properly. (Field Service Tech repair)
Technical cause

The cassette temperature is 3°C or more above a set point during the Sterilization phase of the cycle.

Our troubleshooting advice

Cycle fault 15 occurs when the Statim is having trouble venting. Follow SciCan’s troubleshooting advice for this error (below).

SciCan’s technical manual says
  1. Check for kinked or pinched exhaust tubing. (End user repair)
  2. Check for a clogged venturi in the left rear of the cassette tray. Clean as needed. (End user repair)
  3. Solenoid valve is failing to open. Disassemble and check that plunger slides smoothly in plunger tube (solenoid disassembly guide). Field Service Tech repair
Technical cause

The boiler temperature went above 171C

Our troubleshooting advice

A cycle fault 16 means that the boiler overheated. It is one of the easier cycle faults to troubleshoot. It is caused by either a weak water pump or a defective circuit board.

Tip: A cycle fault 16 does NOT indicate a problem with the boiler. On the contrary, this cycle fault is a good indication that the boiler is healthy, because its temperature sensor successfully detected the overheat!

Troubleshooting steps:

  1. Determine whether your water pump has a copper tint or a silver tint. Copper-colored water pumps are older and have internal filters, which need to be cleaned when they clog. Silver-colored water pumps do not have internal filter (except for a few early ones from 2006-2007), and are usually paired with an in-line water filter, which should be replaced when it clogs.
  2. If you have a copper water pump, clean the internal filters (Statim water pump cleaning guide), then see if pump performance is improved.
  3. If you have a silver water pump, replace the in-line filter, then see if pump performance improves.
  4. If cleaning/replacing the filters does not improve pump performance, replace the water pump.
  5. Remove the Statim cover and begin a normal sterilization cycle. For this next step, you’ll need to see Statim’s voltage test points ( image ). Using a multimeter, test for AC current at J1, port 3 and 4. When the “boiler” light bulb is illuminated, line voltage should be present. When the light bulb is not illuminated, voltage should not be present at 3 and 4. If line voltage appears continuously at 3 and 4, even when the “boiler” light bulb is not illuminated, the circuit board is bad. Replace circuit board (shop repair).
SciCan’s technical manual says
2xx software:
  1. Check pump using the Pump Tester Bottle. (Field Service Tech repair)
  2. If pump tests weak, clean the pump filters. (Field Service Tech repair)
  3. Calibrate boiler when pump is functioning properly. (Field Service Tech repair)
5xx software:
  1. Check pump using the Pump Tester Bottle clean the pump filters if needed. (Field Service Tech repair) 2. Check for constant power to boiler and replace PCB if needed. (Shop repair)
Technical cause

The boiler (validation thermocouple) calibration is invalid. A new calibration is required.

Our troubleshooting advice

Cycle fault 19 indicates that the boiler’s calibration information has somehow been erased from the software. This is a purely electronic error and does not have anything to do with the boiler itself. It may be caused by a buildup of static electricity on the circuit board, or by corrupted software or a defective circuit board. Calibrating the boiler will often resolve this cycle fault completely. If the cycle fault 19 happens repeatedly, the circuit board or software may be bad.

Follow the steps below to troubleshoot:

Perform a boiler calibration (boiler calibration guide). This will normally resolve the cycle fault.

If cycle fault 19 persists, replace the software and calibrate both chamber and boiler thermocouples (boiler calibration guide).

If cycle fault 19 persists, replace the circuit board and calibrate both chamber and boiler thermocouples (boiler calibration guide).

SciCan’s technical manual says
  1. Calibrate the boiler (validation thermocouple). If problem persists replace Microprocessor and EEPROM (matched set) and calibrate boiler. (Field Service Tech repair)
Technical cause

The pump has failed to pump water into the steam generator (boiler) during a pre-vent pump time-out. The steam generator (boiler) temperature was greater than 140°C for 3.6 seconds after the pump was activated to pump water to cool the steam generator (boiler).

Our troubleshooting advice

We have never encountered this cycle fault over the thousands of Statim repairs we’ve performed. If it does occur, check the following:

  1. Intermittent loss of voltage to water pump. Remove the cover and start any sterilization cycle. Observe the small light bulb labeled “pump” on the circuit board. When the bulb illuminates, you should hear the water pump activate. If the bulb illuminates, and the water pump fails to activate, the circuit board is defective. Replace the circuit board (shop repair).
  2. Determine whether your water pump has a copper tint or a silver tint. Copper-colored water pumps are older and have internal filters, which need to be cleaned when they clog. Silver-colored water pumps do not have internal filter (except for a few early ones from 2006-2007), and are usually paired with an in-line water filter, which should be replaced when it clogs.
  3. If you have a copper water pump, clean the internal filters (Statim water pump cleaning guide), then see if pump performance is improved.
  4. If you have a silver water pump, replace the in-line filter, then see if pump performance improves.
  5. If cleaning/replacing the filters does not improve pump performance, replace the water pump.
SciCan’s technical manual says
  1. Check pump using the Pump Tester Bottle clean the pump filters if needed. (Field Service Tech repair)
Technical cause

The software has failed to detect a need to pump water in 90 seconds.

Our troubleshooting advice

Cycle fault 25 indicates a problem with either the boiler or the circuit board and cannot be repaired in the office. We do not recommend replacing the thermal fuse. A shop repair is needed. Refer to our Cycle Fault 25 blog post for a more detailed examination of this cycle fault.

SciCan’s technical manual says
  1. Boiler does not heat up. No power to boiler. (Field Service Tech repair)
  2. Check thermal fuse. Using an ohmmeter check for continuity between J1-3 & lower terminal on boiler. If you read less than 1-ohm thermal fuse is good. If thermal fuse checks good proceed to step 3, if bad replace and check unit for proper operation. Test pump using pump tester. (Field Service Tech repair)
  3. Check resistance reading between J1-3 & J1-4 should read approx. 11ohms. (Field Service Tech repair)
  4. Check for line voltage at terminals J1-3 & J1-4 during warm up. If the reading is good proceed to step 5, if bad, PCB (Printed Circuit Board) is defective. (Shop repair)
  5. Check for line voltage at boiler terminals. (Field Service Tech repair)

2xx-4xx software

Technical cause

The sterilization phase has failed to start within 3 minutes of the cassette reaching the sterilization temperature.

Our troubleshooting advice

Cycle fault 26 is caused by confusion between the Statim’s boiler and chamber temperature readings, which causes the unit to vent/repressurize repeatedly in an attempt to stabilize. This can be caused by a contaminated boiler or a defective circuit board. In rare cases, it can be caused by leaks or blockages at any of several places throughout the Statim. Due to the complicated troubleshooting for this error, shop repair is recommended.

You can also try the following:

  1. Check for boiler contamination, indicated by mineral deposits (sandy material) left in the cassette tray after a cycle. A large amount of this material indicates that the boiler needs replacement.
  2. Check the solenoid valve for debris (solenoid disassembly guide).
  3. If steam is coming from the front of the cassette during the cycle, consult our Guide to Cassette Leaks.
  4. Check for loose potentiometer: Start the Statim in calibration mode, but do not begin a calibration cycle (boiler calibration guide). This will display the current temperature readings for the chamber thermocouple (right) and the validation thermocouple (left). Gently wiggle the circuit board potentiometer labeled “TC-ADJ” ( image ). If the displayed temperature jumps by several degrees when the potentiometer is wiggled, the potentiometer is loose. Re-solder the potentiometer to the circuit board. Calibrate the chamber temperature and the boiler before returning the Statim to service.
  5. Check for defective circuit board: Start a normal sterilization cycle and observe the display. The display will show “pressurizing” until the Statim reaches sterilization temperature, at which point it will show “sterilizing.” Continue to watch the screen throughout the cycle. If at any point the Statim re-enters “pressurizing” mode, the circuit board is defective. Replace and calibrate the circuit board.
SciCan’s technical manual says
  1. Calibrate boiler. If problem persists replace and calibrate boiler. (Field Service Tech repair)

5xx software:

The sterilization phase has failed to start within 3 minutes of the cassette reaching the sterilization temperature. Cycle Fault 26 is displayed when this occurs in three consecutive cycles. (Cycle Interrupted is displayed for the first two cycles). Cycle Fault 26 counter is reset whenever a successful cycle is completed.
Our troubleshooting advice

Cycle fault 26 is caused by confusion among the Statim’s three temperature readings (boiler, chamber, validation), which causes the unit to vent/repressurize repeatedly in an attempt to stabilize. This can be caused by a contaminated boiler or a defective circuit board. In rare cases, it can be caused by leaks or blockages at any of several places throughout the Statim.

Due to the complicated troubleshooting for this error, shop repair is recommended. You can also try the following:

  1. Check for boiler contamination, indicated by mineral deposits (sandy material) left in the cassette tray after a cycle. A large amount of this material indicates that the boiler needs replacement.
  2. Check the solenoid valve for debris (solenoid disassembly guide).
  3. If steam is coming from the front of the cassette during the cycle, consult our Guide to Cassette Leaks.
  4. Check for loose potentiometer: Start the Statim in calibration mode, but do not begin a calibration cycle (boiler calibration guide). This will display the current temperature readings for the chamber thermocouple (right) and the validation thermocouple (left). Gently wiggle the circuit board potentiometer labeled “TC-ADJ” ( image ). If the displayed temperature jumps by several degrees when the potentiometer is wiggled, the potentiometer is loose. Re-solder the potentiometer to the circuit board. Calibrate the chamber temperature and the boiler before returning the Statim to service.
  5. Check for defective circuit board: Start a normal sterilization cycle and observe the display. The display will show “pressurizing” until the Statim reaches sterilization temperature, at which point it will show “sterilizing.” Continue to watch the screen throughout the cycle. If at any point the Statim re-enters “pressurizing” mode, the circuit board is defective. Replace and calibrate the circuit board.
SciCan’s technical manual says
  1. Check for visible steam leaks from the cassette. If the cassette is leaking repair as needed. Replace cassette seal, lid or tray. (End user repair)
  2. Check the solenoid for debris and make sure the plunger is not sticking. (Field Service Tech repair)
  3. Calibrate boiler (validation thermocouple). (Field Service Tech repair)

2xx-4xx software

Technical cause

The internal temperature of the steam generator (boiler) has exceeded 150°C for 25 seconds.

Our troubleshooting advice

Cycle fault 27 occurs when the boiler is failing to cool down later in the cycle. Most common causes are a defective water pump or a defective circuit board (constant voltage to the boiler). Follow the steps below:

  1. Check pump output using a pump tester bottle. Clean the pump filters if necessary, or replace the in-line water filter, if equipped.
  2. Check for water pump backflow. With the Statim cover off, start any cycle and wait until the unit reaches the sterilization stage of the cycle (display will read “sterilizing”). Closely observe the transparent water pump tube that leads to the boiler. Water should be flowing forward whenever the pump activates, but NEVER backward toward the pump. If you can’t tell for sure if this is occurring, wait until the cycle ends, then observe the water pump tube as soon as the air compressor activates. If the water pump is defective, the pressure from the air compressor will push water through the tube toward the water pump. If you observe this backflow at any time, replace the water pump.
  3. Check for excessive voltage to the boiler. If the circuit board is providing constant voltage the boiler (a known issue with Statims), a cycle fault 16 will normally occur, rather than a cycle fault 27. However, this voltage problem can also occur intermittently, rather than constantly, which can cause a cycle fault 27. This can be more difficult to troubleshoot. To test for this, remove the Statim cover and begin a normal sterilization cycle. For this next step, you’ll need to see Statim’s voltage test points ( image ). Using a multimeter, test for AC current at J1, port 3 and 4. When the “boiler” light bulb is illuminated, line voltage should be present. When the light bulb is not illuminated, voltage should not be present. If line voltage appears continuously at 3 and 4, even when the “boiler” light bulb is not illuminated, the circuit board is bad. Replace circuit board (shop repair).
  4. Intermittent loss of voltage to water pump. Remove the cover and start any sterilization cycle. Observe the small light bulb labeled “pump” on the circuit board. When the bulb illuminates, you should hear the water pump activate. If the bulb illuminates, and the water pump fails to activate, the circuit board is defective. Replace the circuit board (shop repair).
SciCan’s technical manual says
  1. Check pump using the Pump Tester Bottle. (Field Service Tech repair)
  2. If pump tests weak, clean the pump filters. (Field Service Tech repair)
  3. 3. Calibrate boiler when pump is functioning properly. (Field Service Tech repair)

5xx software

Technical cause

The temperature of the steam generator (boiler) has failed to drop below a set point temperature in a timeout period.

Our troubleshooting advice

Same as 2xx-4xx software (listed above)

SciCan’s technical manual says
  1. Check pump using the Pump Tester Bottle clean the pump filters if needed. (Field Service Tech repair)
Technical cause

There is a communication error between the microprocessor and the Temperature Adapter Board.

Our troubleshooting advice
  1. Remove the temperature adapter board ( image ) and make sure the thermocouple leads are properly attached. Make sure that the exposed parts of the leads are not touching each other or any other components on the adapter board or the circuit board. Check the connections between the temperature adapter board and the circuit board. Make sure the connector pins are not bent or broke.
  2. If problem persists, replace the temperature adapter board.
  3. If problem persists, replace the microprocessor.
  4. If problem persists, replace the circuit board.
SciCan’s technical manual says
  1. Check the connection between the square microprocessor and the PCB. (Field Service Tech repair)
  2. If PCB adapter board is used check the connection between the adapter board and the PCB. (Field Service Tech repair)
  3. Verify that the Temperature Adapter Board is properly inserted and secure on the main PCB. (Field Service Tech repair)
Technical cause

Square microprocessor failed to communicate with PCB.

Our troubleshooting advice

Follow SciCan’s recommended steps below. If these do not resolve the problem, there is an irreparable problem with either the software or the circuit board. Replacing either will require calibration, so a shop repair will be needed.

SciCan’s technical manual says
  1. Check that pins on square microprocessor are not shorted.
  2. If PCB adapter board is used check for bent pins.
  3. Check the pins on the Temperature Adapter Board. (Field Service Tech repair)