COMPLAINT | CAUSE | REMEDY |
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Compressor cycles | Voltage | Check the voltage. See the limits on the preced- |
on overload. |
| ing page. If not within limits, call an electrician. |
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| Overload | Check overload, if externally mounted. |
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| Replace if open. (If the compressor temperature |
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| is high, remove the overload, cool, and retest.) |
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| Fan motor | If not running, determine the cause. Replace if |
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| required. |
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| Condenser air flow | Remove the cabinet. Inspect the interior surface |
| restriction | of the condenser; if restricted, clean carefully |
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| do not damage fins. Clean the interior |
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| base before reassembling. |
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|
| Condenser fins | If condenser fins are closed over a large area |
| (damaged) | on the coil surface, head pressures will increase, |
|
| causing the compressor to cycle. Straighten the |
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| fins or replace the coil. |
| Capacitor | Test capacitor. |
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| Wiring | Check the terminals. If loose, repair or replace. |
| Refrigerating system | Check the system for a restriction. |
Insufficient cooling or | Air filter | If restricted, clean or replace. |
heating | Exhaust damper door | Close if open. |
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| Unit undersized | Determine if the unit is properly sized for the area to |
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| be cooled. |
Excessive noise. | Blower or fan | Check the set screw or clamp. If loose or missing, |
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| correct. If the blower or fan is hitting air guide, |
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| rearrange the air handling parts. |
| Copper tubing | Remove the cabinet and carefully rearrange tubing |
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| not to contact cabinet, compressor, shroud, and |
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| barrier. |
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— 17—
