Applicable Systems
RTAC 200
Symptoms
Solenoid valve fault. A solenoid valve in the system is not operating correctly.
Possible Causes
- Solenoid coil failure
- Valve mechanically stuck or wiring fault
Troubleshooting Steps
- Step 1: Check the solenoid coil resistance and voltage
Coil is open or no voltage is present - Step 2: Inspect the valve for mechanical sticking
Valve is stuck open or closed
How to Reset
To reset: Replace the solenoid coil or valve, then reset the controller.
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Source: Trane HVAC Service Manual, Trane Inc.
Category: HVAC Residential
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