COMPLAINT | CAUSE | REMEDY |
|
|
|
Compressor cycles on | Fan motor | If not running, determine the cause. Replace if |
overload |
| required. |
|
|
|
| Condenser air flow | Remove the cabinet, inspect the interior surface of |
| restriction | the condenser. If restricted, clean carefully with a |
|
| vacuum cleaner (do not damage fins) or brush. |
|
| Clean the interior base before |
|
|
|
| Condenser fins | If the condenser fins are closed over a large area on |
| (damaged) | the coil surface, head pressures will increase, |
|
| causing the compressor to cycle. |
|
| Straighten the fins or replace the coil. |
|
|
|
| Capacitor | Test the capacitor. |
|
|
|
| Wiring | Check the terminals. If loose, repair or replace. |
|
|
|
| Refrigeration system | Check the system for a restriction. |
|
|
|
Insufficient cooling | Air filter | If restricted, clean or replace. |
|
|
|
| Exhaust damper door | Close if open. |
|
|
|
| Unit undersized | Determine if the unit is properly sized for the area to |
|
| be cooled. |
|
|
|
Excessive noise | Blower or fan | Check the set screw, or clamp. If loose or missing, |
|
| correct. If the blower or fan is hitting scroll or barrier, |
|
| rearrange the air handling parts. |
|
|
|
| Copper tubing | Remove the cabinet and carefully rearrange the |
|
| tubing not to contact the cabinet, compressor, |
|
| shroud and barrier. |
|
|
|
— 23—