5-FLASHCRITICAL
Gas Valve Relay Short
The control board detects a short circuit on the gas valve relay circuit and will not energize the valve.
What This Error Code Means
An electrical short in the gas valve circuit prevents the control board from safely operating the valve.
Common Causes
- Shorted gas valve wiring
- Failed gas valve solenoid
- Control board relay welded shut
- Moisture in gas valve connector
- Pinched wire causing short
Affected Brands
LennoxCarrierTraneGoodmanRheemYorkBryant
How ROMA Heating Fixes This
- Trace and inspect gas valve wiring
- Test gas valve coil resistance
- Check for shorts to ground
- Replace gas valve if internally shorted
- Replace control board if relay failed
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Licensed Technicians
TSBC Gas License LGA0202903. Fully insured and WCB covered.
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