Applicable Systems
RTAC 200
Symptoms
Ground fault. A ground leakage current has been detected in the system.
Possible Causes
- Insulation breakdown in wiring or motor windings
- Moisture ingress causing ground leakage
Troubleshooting Steps
- Step 1: Use a megohmmeter to check insulation resistance
Insulation resistance is below acceptable level - Step 2: Locate and repair the ground fault
Insulation resistance is restored
How to Reset
To reset: Fix the ground fault, then reset the controller.
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Source: Trane HVAC Service Manual, Trane Inc.
Category: HVAC Residential
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