Vulcan-Hart ML-044961, ML-044937, ML-044936, ML-044962 Troubleshooting, Problem, Probable Cause

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Charbroiler will not heat evenly.

TROUBLESHOOTING

Problem

Charbroiler will not heat evenly.

Repeated component failure.

Probable Cause

Valves turned on too high.

Incorrect orifice.

Orifice obstructed.

Gas pressure too high.

Radiants warped.

Burners deteriorated.

Gas pressure fluctuating.

Grates obstructed with cooking/product debris.

Improper use of appliance.

Fluing problem.

Poor housekeeping.

Water damage.

Not properly installed.

Make-up air/draft problem.

Insufficient exhaust.

Repairs made using incorrect/non-OEM parts.

Gas pressure too high.

Power surge.

Poor electrical ground.

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Contents SERVICE AND PARTS MANUAL IMPORTANT FOR YOUR SAFETYSIGNATURE SERIES VULCAN-HART COMPANY TABLE OF CONTENTS Snorkel Oven and/or Electric Ignition Oven with KX ThermostatService Notes INTRODUCTIONProduct Features and Descriptions Product Features and Descriptions Cont UNCRATING/SETUP INSTALLATION REQUIREMENTSGAS PRESSURE REQUIREMENTS GAS CONNECTIONSInstallation Requirements Cont GAS PRESSURE CHECK PROCEDURES StepsVENTILATION REQUIREMENTS DIAGRAM #2 PILOT ADJUSTMENTSDIAGRAM #1 DIAGRAM #3 DIAGRAM #4BURNER ADJUSTMENTS DIAGRAM #5BATTERY INSTALLATION DIAGRAM #6 DIAGRAM #7 DIAGRAM #8 THERMOSTATS CALIBRATION OF THERMOSTATS DIAGRAM #9DIAGRAM #10 Standard Oven with FDTO ThermostatSnorkel Oven and/or Electric Ignition Oven with KX Thermostat Griddles with BJWA Thermostat DIAGRAM #11 DIAGRAM #12 BYPASS SCREW CALIBRATION SCREWOVEN ELECTRIC IGNITION SYSTEMS Spark SystemDIAGRAM #13 SIGNATURE OVEN W/SPARK PILOTSIGNATURE CONVECTION OVEN DIAGRAM #14W/ELECTRIC IGNITION DIAGRAM #15 SIGNATURE OVEN W/ELECTRIC IGNITIONBRASS VALVES DIAGRAM #16VALVE DIAGRAM #18 DOORS, DOOR SEALS, HINGES AND COUNTERWEIGHTSDIAGRAM #17 DIAGRAM #19All sizes are rated for sea level BURNERORIFICE, NAT ORIFICE, LPCLEANING PROCEDURES Cleaning Tips Recommended Service Frequency SCHEDULED MAINTENANCEInspection Items Problem TROUBLESHOOTINGProbable Cause Griddle will not heat evenly Product sticking to griddle Problem Gas odor Charbroiler will not heat evenly Repeated component failure Stainless steel turning blue Stainless steel turning brown PARTS Standard Burners426745-1 Standard Burner PartsKNOB CONTROL Hot Tops/Fry Tops 426745-1 Hot Tops/Fry Tops PartsKNOB CONTROL French Top 426745-1 French Top PartsKNOB CONTROL Standard Oven Convection OvenOven Parts 788278A 788276PANELControl System Convection Oven Control System Standard Oven Control System Parts List S TYPEBody Parts/Shelves Risers Body Parts/Shelves Risers Parts List 788382A1 788382A2 788382A3 788382ARiser Kit Without Shelf P/N 788266A Riser Kit With Single Shelf P/N 788365A Double Deck Riser Kit Without Shelves P/N 788368A Double Deck Riser Kit With Shelves P/N 788368A FORM 31203 Rev. A March