E223CRITICAL
Gas Valve Circuit Fault
The control board detects an electrical fault in the gas valve circuit and will not attempt ignition.
What This Error Code Means
Electrical issue detected in the gas valve circuit preventing the valve from opening.
Common Causes
- Gas valve coil failure
- Wiring short or open circuit
- Faulty control board gas valve relay
- Loose electrical connections
- Thermal overload on gas valve
Affected Brands
LennoxCarrierTraneGoodmanRheemYorkBryant
How ROMA Heating Fixes This
- Measure resistance across gas valve coils
- Inspect wiring for damage or loose connections
- Test voltage supply to gas valve
- Replace gas valve if coil is failed
- Verify proper valve operation after repair
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