HVAC Systems · Furnace Components
Gas Valve
The electrically controlled valve that meters fuel gas to the furnace burners on a call for heat, opening only when the ignition and safety circuit confirm conditions are safe.
Common uses
Metering gas to burners, safety shutoff, staged heat control
Common symptoms
- No heat
- Burners will not light
- Gas smell near furnace
Common repairs
- Valve replacement
- Wiring and voltage check
- Manifold pressure adjustment
Related terms
Pro launch updates
Get notified when Pro launches, plus a monthly code-change digest. Email only — no account required.