Alarm | Priority | Problem | Reset, Corrections, and Adjustments |
Signal | |||
|
| High Condenser Temperature Alarm | Turn the power off, then back on. |
|
| (clogged filter) |
|
|
|
| Condenser and/or air filter dirty. Fan motor not |
E7 | 6 | Condenser temperature is outside of | turning. Possible restriction in refrigeration system. |
|
| normal operating temperature. 140°F |
|
|
| (60°C) | Failure to take action when this alarm activates |
|
|
| could result in damage to the compressor. |
|
| Defrost Thermistor Malfunction Alarm | After replacing defrost thermistor, alarm resets. |
E8 | 3 |
|
|
|
| Defrost thermistor shorted or open. |
|
|
| Condenser Thermistor Malfunction | After replacing condenser thermistor, alarm resets. |
E9 | 4 | Alarm |
|
|
| ||
|
| Condenser thermistor shorted or open. |
|
|
| EEPROM Write Alarm | After replacing control board, alarm resets. |
EA | 2 |
|
|
|
| Control board has failed. |
|
|
| EEPROM Verification or Read Alarm | After replacing control board, alarm resets. |
ED | 1 |
|
|
|
| Control board has failed. |
|
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