Applicable Systems
Carrier ComfortLink Thermostat/Controller
Symptoms
Fan motor fault. A fan motor is not operating correctly.
Possible Causes
- Fan motor winding failure
- Fan motor capacitor defective
Troubleshooting Steps
- Step 1: Check the fan motor capacitor
Capacitor is out of specification - Step 2: Measure the fan motor winding resistance
Winding is open or shorted
How to Reset
To reset: Replace the fan motor or capacitor, then reset the controller.
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Source: Carrier HVAC Troubleshooting Guide, Carrier Corporation
Category: HVAC Residential
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