Applicable Systems
Carrier ComfortLink Thermostat/Controller
Symptoms
Current abnormal fault. The system current is outside the normal operating range.
Possible Causes
- Motor or compressor drawing abnormal current
- Wiring fault causing current imbalance
Troubleshooting Steps
- Step 1: Check the system current with a clamp meter
Current is outside the rated range - Step 2: Inspect wiring and motor for faults
Faulty component is identified
How to Reset
To reset: Fix the current issue, then reset the controller.
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Source: Carrier HVAC Troubleshooting Guide, Carrier Corporation
Category: HVAC Residential
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