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HOW TO USE THE ERROR CODE TROUBLESHOOTING GUIDE
Error Codes indicate troubles registered by particular elements. If mistake codes are registered, they will appear before temperature readings while in Diagnostic Mode.
KEEP IN MIND: If Error Codes appear with a flashing “SERVICE” annunciator before initiating Diagnostic Mode, the system experienced excessive compressor run problem that may or may not be related to the Mistake Codes presented
To start Diagnostic Setting, press and hold either COLDER secret, after that press the POWER key, then release both keys. Currently, inspect to see if Error Codes exist, making certain to toggle with all mistake and temperature level readings by pressing either COLDER vital or either WARMER key. (See Mistake Code Table Below).
If Error Codes show up during Diagnostic Setting, adhere to the Error Code Troubleshooting Guide on the following page. The left column of the troubleshooting overview details the mistake codes. The information in the appropriate column explains what tests to execute and/or what activity to require to correct the error.
KEEP IN MIND: If mistake codes are observed in analysis setting, a non-flashing SERVICE annunciator will appear on the LCD when Diagnostic Mode ends, indicating mistake codes are still stored. Error Codes should be gotten rid of from the electronic control memory by hand. To clear the non-flashing SERVICE annunciator as well as the mistake codes, the problem should be dealt with and the system needs to get on, then:.
- On a version UC-24C: Press the Freezer WARMER and also COLDER secrets for fifteen (15) seconds.
- On a version UC-24B, UC-24R, or UC-24RO: Press the Fridge WARMER and COLDER tricks for fifteen (15) seconds.
Error Code Table
| CODE | INDICATION |
| 05 | Refrig. cabinet thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s |
| 06 | Refrig. evaporator thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s |
| 07 | Freezer cabinet thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s |
| 08 | Freezer evaporator thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s |
| 20 | Defrost under-heat with no voltage feedback through Gray/White wire at defrost start |
| 21 | Defrost overheat |
| 22 | No voltage feedback through Gray/White wire at defrost start |
| 23 | Defrost overheat with no voltage feedback through Gray/White wire at defrost start |
| 24 | Defrost under-heat |
| 30 | N/A |
| 40 | Excessive Freezer Compressor Run |
| 50 | Excessive Refrigerator Compressor Run |
| Error Code | CAUSE | SOLUTION |
| Error Code 90 H 83 | Communication issue with the main board. | This error indicates that the main control board needs to be reset or replaced. Disconnect the refrigerator from the power by unplugging it, or turning off power at the circuit board. Wait ten minutes and reconnect the power. If the fault is not resolved, contact a service technician for additional assistance. |
Error Code 90 H 83
A. If “EE” for fridge area was presented as well as “SERVICE” flashing, inspect the following:.
- Thermistor electric links and also continuity from thermistor to J5 on control board. Reconnect/ repair service.
- Resistance of thermistor– 30,000 to 33,000 ohms at 32 ° F( 0 ° C). Change if faulty. B. If “EE” for refrigerator area was NOT displayed, problem is recurring thermistor error:.
- Door not shutting properly. Appropriate door closing issue.
- Check light switch, wiring & electric connections. Repair work wiring/ connections or replace button.
- Inspect thermistor electrical connections as well as continuity at J5 on control board. Reconnect/ repair service.
- Inspect resistance of thermistor– 30,000 to 33,000 ohms at 32 ° F (0 ° C). Change if defective.
C. If “EC 05” and “SERVICE” were blinking before initiating analysis setting, unit additionally experienced excessive compressor run problem that may or may not be related to the “05” Mistake Code. See Error Code 50 Test/Actions.
