Applicable Systems
RTAC 200
Symptoms
Crankcase heater fault. The crankcase heater is not operating correctly.
Possible Causes
- Crankcase heater element failure
- Heater wiring or thermostat fault
Troubleshooting Steps
- Step 1: Check the crankcase heater resistance
Heater element is open circuit - Step 2: Verify the heater wiring and thermostat operation
Wiring is damaged or thermostat is faulty
How to Reset
To reset: Replace the crankcase heater or thermostat, then reset.
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Source: Trane HVAC Service Manual, Trane Inc.
Category: HVAC Residential
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