Problem | Possible Cause |
|
| Remedy | |||
[1] | Cabinet | g) | Defrost | 1. | Defrost time | 1. | See "4. Cabinet Defrost." |
| temperature too |
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| insufficient to remove |
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| high. (continued) |
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|
| frost. Operation in |
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| humid conditions. |
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|
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| 2. Incomplete defrost. | 2. See "4. Cabinet Defrost." | ||
|
| h) | Air Filter or Condenser | 1. | Clogged, dirty. | 1. | Clean. |
|
| i) | Cabinet Fan Motor | 1. | Defective. | 1. | Check and replace. |
|
| j) | Cabinet Liquid Line | 1. | Does not open. | 1. | Check and replace. |
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|
| Valve |
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|
|
|
| k) | Service Valve(s) | 1. | Partially or completely | 1. | Confirm service valve is |
|
|
|
|
| closed. |
| open. |
|
| l) | Refrigerant | 1. | Leak. | 1. | Recover, repair leak, |
|
|
|
|
|
|
| replace drier, evacuate, and |
|
|
|
|
|
|
| recharge. |
|
| m) Expansion Valve | 1. | Operating erratically. | 1. | Check and replace. | |
|
| n) | Compressor | 1. | Defective. | 1. | See "1.[3] Compressor will |
|
|
|
|
|
|
| not start or stops operating." |
|
| o) | Control Board | 1. | Defective. | 1. | Replace. |
[2] | Cabinet temperature | a) | Setpoint and/or | 1. | Incorrect. | 1. | Correct setting(s). |
| too low. |
| Temperature |
|
|
| See "II.D.4.c) Temperature |
|
|
| Correction Factor |
|
|
| Setpoint" or |
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|
|
|
|
|
| "II.D.4.f) Temperature |
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|
|
|
|
| Correction Factor" for |
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|
|
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| defaults. |
|
| b) | Frozen Food | 1. | Frozen food recently | 1. | Allow time for unit to return |
|
|
|
|
| placed in refrigerator. |
| to setpoint temperature. |
|
| c) | Cabinet Thermistor | 1. | Defective. | 1. | Check and replace. |
|
| d) | Cabinet Liquid Line | 1. | Does not close. | 1. | Check and replace. |
|
|
| Valve |
|
|
|
|
|
| e) | Compressor Relay | 1. | Defective; contacts | 1. | Replace. |
|
|
|
|
| welded. |
|
|
|
| f) | Control Board | 1. | In alarm or defective. | 1. | See "III.A Alarm Signals" or |
|
|
|
|
|
|
| replace. |
35
