COMPLAINT | CAUSE | REMEDY |
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Fan motor will not run. | No power | Check voltage at outlet. Correct if none. |
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| Power supply cord | Check voltage to rotary switch. If none, check power |
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| supply cord. Replace cord if circuit is open. |
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| Rotary switch | Check switch continuity. Refer to wiring diagram for |
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| terminal identification. Replace switch if defective. |
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| Wire disconnected or | Connect wire. Refer to wiring diagram for terminal |
| connection loose | identification. Repair or replace loose terminal. |
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| Capacitor (Discharge | Test capacitor. |
| capacitor before testing.) | Replace if not within ±10% of manufacturer's rating. |
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| Replace if shorted, open, or damaged. |
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| Will not rotate | Fan blade hitting shroud or blower wheel hitting |
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| scroll. Realign assembly. |
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| Units using slinger ring for condenser fan must have |
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| 1/4 to 5/16 inch clearance to the base. If it hits the |
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| base, shim up the bottom of the fan motor with |
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| mounting screw(s). |
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| Check fan motor bearings; if motor shaft will not |
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| rotate, replace the motor. |
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Fan motor runs | Revolves on overload. | Check voltage. If not within limits, call an electrician. |
intermittently |
| Test capacitor. |
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| Check bearings. Does the fan blade rotate freely? |
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| If not, replace fan motor. |
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| Pay attention to any change from high speed to |
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| low speed. If the speed does not change, replace the |
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| motor. |
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Fan motor noise. | Fan | If cracked, out of balance, or partially missing, |
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| replace it. |
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| Blower | If cracked, out of balance, or partially missing, |
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| replace it. |
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| Loose clamper | Tighten it. |
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| Worn bearings | If knocking sounds continue when running or loose, |
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| replace the motor. If the motor hums or noise |
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| appears to be internal while running, replace motor. |
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Compressor will not run, | Voltage | Check voltage. |
but fan motor runs. |
| If not within limits, call an electrician. |
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| Wiring | Check the wire connections, if loose, repair or |
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| replace the terminal. If wires are off, refer to wiring |
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| diagram for identification, and replace. Check wire |
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| locations. If not per wiring diagram, correct. |
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| Rotary | Check for continuity, refer to the wiring diagram for |
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| terminal identification. Replace the switch if circuit is |
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| open. |
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Ñ17Ñ
