Vulcan-Hart ML-044962, ML-044937, ML-044936, ML-044969 Troubleshooting, Problem, Probable Cause

TROUBLESHOOTING

Problem

Oven burner will not light.

Oven pilot outage.

Griddle will not recover.

Probable Cause

•Pilot flame too low or not lit.

•Pilot burner not positioned properly.

•Wrong burner orifice.

•Gas pressure incorrect.

•Vent in pressure regulator blocked.

•Gas-to-air ratio incorrect.

•Draft or air movement around oven burner.

•Oven burner obstructed.

•Oven burner baffle out of position.

•Oven burner not on orifice correctly.

•Pilot orifice obstructed.

•Low gas pressure.

•Insufficient gas volume.

•Vent in pressure regulator blocked.

•Oven flue obstructed or disturbed by draft.

•Poor pilot flame. Pilot burner deteriorated.

•Draft or breeze near floor.

•Burner box cover missing.

•Excessive door slamming.

•Thermocouple MV output low.

•Failed safety valve.

•Thermostat swing beyond specification.

•Thermostat out of calibration.

•Wrong orifice. Low gas pressure.

•Thermostat sensor not in correct position.

•Gas-to-air ratio on burner incorrect.

•Bypass flame too low to keep burner lit.

•Product volume beyond griddle capacity.

•Product placement incorrect.

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