Ruud gas valve = integrated control with thermostat, ECO, gas solenoid, LED indicator. Replacement dealer-only.
Why dealer-only
- Gas-line work — licensed plumber territory
- Factory calibration for NG vs LP
- Warranty voided if non-licensed install
Symptoms
- Burner won\'t light (solenoid stuck closed)
- Stuck at full fire
- Won\'t shut off
- LED indicator pattern not normal
Cost
- Gas valve: $200-400 OEM
- Labor: $250-500
- Total: $450-900
Replace valve or unit?
8+ year-old units: replacement approaches 50% of new-unit cost. Most installers recommend new unit.
Bottom line
Dealer-only. Don\'t operate if stuck-open suspected.