Service manual

SERVICE MANUAL Troubleshooting Guide Gas Griddles ___ _____PAGE 5-1
TROUBLE SYMPTOM CHART
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
ALL PILOTS WILL NOT
LIGHT
GAS SUPPLY TURNED OFF TURN ON GAS TO GRIDDLE.
ONE PILOT WILL NOT
LIGHT
CLOGGED PILOT GAS LINE OR
ORIFICE, GAS VALVE FOR THAT
PILOT DEFECTIVE
CLEAN PILOT GAS LINE/ORIFICE, REPLACE
DEFECTIVE VALVE.
PILOT WILL NOT STAY
ON
TOO MUCH DRAFT, LOW PILOT
FLAME, BAD THERMOPILE,
DEFECTIVE GAS VALVE, PILOT LINE
CLOGGED, PILOT ORIFICE CLOGGED,
IMPROPER GAS PRESSURE, NO GAS,
PILOT LINE NOT PURGED OF AIR,
CONDENSATION
SHIELD OR CHANGE AIR SUPPLY, CHECK PILOT
FLAME LEVEL, CHECK THERMOPILE OUTPUT, IF 325
MILLIVOLTS OR MORE, REPLACE GAS VALVE,
CLEAN ORIFICE, ADJUST REGULATOR PRESSURE,
TURN ON GAS, PURGE PILOT LINE OF AIR, RE-LIGHT
PILOT.
PILOT AND/OR
BURNER FLAME LAZY
OR YELLOW
NOT ENOUGH PRIMARY OR
SECONDARY AIR, DIRT IN ORIFICE,
BURNER VENTURI CLOGGED,
IMPROPER SIZE ORIFICE, CLOGGED
FLUE, IMPROPER GAS PRESSURE
ADJUST AIR SUPPLY, REMOVE AND CLEAN ORIFICE,
CLEAN VENTURI, INSTALL CORRECT ORIFICE,
CLEAN RESTRICTED FLUE, ADJUST REGULATOR
PRESSURE.
BURNER FLAME NOISY TOO MUCH PRIMARY AIR, IMPROPER
GAS PRESSURE
ADJUST BURNER AIR SHUTTER, ADJUST
REGULATOR PRESSURE.
BURNER FLAME TOO
HIGH
WRONG SIZE ORIFICE, IMPROPER
GAS PRESSURE
INSTALL CORRECT ORIFICE, ADJUST REGULATOR
PRESSURE
BURNER POPS TOO MUCH PRIMARY AIR, DIRT IN
BURNER ORIFICE, IMPROPER GAS
PRESSURE
ADJUST AIR SHUTTER, CLEAN BURNER ORIFICE,
ADJUST REGULATOR PRESSURE.
FLAME IN MIXING
TUBE
DIRT IN BURNER ORIFICE, BURNER
VENTURI CLOGGED IMPROPER GAS
PRESSURE, ORIFICE NOT AIMED IN
CENTER OF VENTURI
REMOVE AND CLEAN ORIFICE, CLEAN VENTURI,
ADJUST REGULATOR PRESSURE, RE-AIM ORIFICE.
NOT ENOUGH HEAT,
OR HEATS TOO
SLOWLY
DIRT IN BURNER ORIFICE, WRONG
ORIFICE, IMPROPER GAS PRESSURE,
VENTURI CLOGGED, CLOGGED FLUE,
DEFECTIVE GAS VALVE
REMOVE & CLEAN ORIFICE, INSTALL CORRECT SIZE
ORIFICE, ADJUST REGULATOR PRESSURE, CLEAN
CLOGGED VENTURI, CLEAN CLOGGED FLUE,
REPLACE GAS VALVE.
BURNER WILL NOT
COME ON
THERMOSTAT WIRE(s) GROUNDED,
POOR CONNECTIONS ON TERMINAL
BLOCK OR THERMOSTAT. LOW
THERMOPILE OUTPUT.
CONTAMINANT(GREASE) ON VALVE
TERMINAL BLOCK DEFECTIVE
THERMOSTAT, DEFECTIVE GAS
VALVE -
CORRECT GROUNDED THERMOSTAT WIRING,
CLEAN TERMINAL BLOCK WITH ELECTRIC
TERMINAL CLEANER. CHECK PILOT LEVEL AND OR
THERMOPILE OUTPUT VOLTAGE, JUMPER
THERMOSTAT TERMINALS; IF BURNER TURNS ON:
REPLACE THERMOSTAT, IF NOT: REPLACE GAS
VALVE.
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TROUBLE SYMPTOM CHART