M9/M11 Sterilizer Water Level Sensor Error Codes: C232 Troubleshooting
To prevent risk of shock always disconnect power before removing covers or performing any service procedure.
Some procedures require power to be connected with covers removed. Line voltage is present. Use extreme caution to prevent electric shock.
C232
| Display / Symptom | Cause | Check | Action |
|---|---|---|---|
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C232: FILL MODE WATER LOW ITEMS NOT STERILE PUSH STOP TO RESTART Water level sensor did not detect water within the 5 minute time limit. |
Reservoir water level is low. |
Check water level in reservoir. |
Add water to the reservoir until water reaches appropriate level. Press STOP button, then initiate a new cycle. |
|
Chamber filter clogged. |
Check if chamber filter is clogged. |
Clean / Replace filter. Clean with Speed-Clean and brush |
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|
Water Level sensor malfunctioning / dirty. |
Inspect water level sensor. |
Clean / Dry water level sensor. Clean with Speed-Clean and scotch bright pad. |
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Loose / damaged wire connections. Check wire connections and all grounded locations. |
Secure / Repair loose or damaged connections. |
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Perform Water Level Sensor Test |
Replace water level sensor. |
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Air valve malfunctioning / dirty. |
With door open and door switch engaged, initiate fill cycle to verify if filling. If yes- Air valve malfunctioning / dirty. Perform Air Valve Test If no- Refer to: Fill Valve malfunctioning / dirty. |
Clean / Replace air valve. |
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|
Fill valve malfunctioning / dirty. |
Inspect fill valve / related tubing for restrictions. |
Clean / Replace fill valve. |
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Inspect two wires connecting the fill valve and PC board (W3 / W4 on PC board) for damage and/or loose connections. |
Secure / Repair loose or damaged connections. |
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With the sterilizer in the Fill Mode and door switch engaged… Perform Fill Valve Continuity Test |
Clean / Replace fill valve. |
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PC Board malfunctioning. |
Verify voltage to Fill Valve. Perform Fill Valve Supply Voltage Test |
Replace Main PC board. |
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Chamber is dirty or corroded. |
Inspect the bottom of the chamber. |
Clean bottom of the chamber with Speed-Clean and distilled water or water that meets the referenced water purity specifications in User Guide. |
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|
Restricted Condensing Coil. |
Check for blockage in coil and assure weep hole is present and not obstructed. |
Clear blockage / replace condensing coil. |
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Blockage or malfunction in VistaCool System if used. |
Check for debris or blockage in the tubing / fittings to the VistaCool System. |
Clean / Replace as required. |
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Check operation of In-Iine Thermal Sensor. |
Replace Thermal Regulator Wax Motor or Thermal Sensor. |
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Check for weep hole in the manifold lid and threaded area on the tank of the VistaCool System. |
Drill hole in VistaCool manifold and threaded area on the tank. |
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Check position of tank for proper installation. |
Install VistaCool as recommened. VistaCool Installation Guide and Owners manual. |
