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Gas Valves, Tubing, Thermostats, Regulators and Solenoids.................................................................... 18
Burner Manifold Assembly (GHCB40) ................................................................................................. 18
Burner Manifold Assembly (GHIR44) .................................................................................................. 19
Oven Pilot Valve (GHCB40) .............................................................................................................. 19
Oven Burner Valve (GHCB40) ............................................................................................................ 19
Pilot Outage Protection Valve (GHCB40) ........................................................................................... 20
Thermostat (GHCB40) ....................................................................................................................... 21
Oven Burner Nozzle (GHCB40).......................................................................................................... 22
Burner Valve [(IR2(B) and HCB2(B)].................................................................................................... 22
Burner Valve (GHIR44) ........................................................................................................................ 23
Regulator (GHIR44)............................................................................................................................. 23
Regulator [HCB2(B)] ........................................................................................................................... 24
Solenoid (GHIR44) .............................................................................................................................. 24
Lever Arm Assembly (All Models) ............................................................................................................. 25
Upper .................................................................................................................................................. 25
Lower .................................................................................................................................................. 25
Blower and Motor ...................................................................................................................................... 26
GHIR44............................................................................................................................................... 26
IR1 and IR2(B) .................................................................................................................................... 27
Blower Switch (GHIR44) ..................................................................................................................... 27
Light (GHIR44) .................................................................................................................................... 28
SERVICE PROCEDURES AND ADJUSTMENTS .................................................................................................. 28
Gas Supply Checks .................................................................................................................................. 28
Regulator Adjustment (All Models) ............................................................................................................ 28
Pilot Adjustment (All Models) .................................................................................................................... 29
Burner Venturi Air Shutter Adjustment [GHCB40 and HCB2(B)] ................................................................. 29
Burner Service (All Models)....................................................................................................................... 30
Burner Orifice Service (All Models) ........................................................................................................... 30
TROUBLESHOOTING............................................................................................................................................ 31