Troubleshooting Guides; Initial Troubleshooting, Millivolt Frying Systems - Frymaster Master Jet CF Series Service And Parts Manual

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES

1.10 Troubleshooting Guides

The troubleshooting guides found in the pages that follow are intended to assist service technicians
in quickly isolating the probable causes of equipment malfunctions by following a logical, step-by-
step process.

1.10.1 Initial Troubleshooting, Millivolt Frying Systems

PROBLEM
Burner won't ignite.
Burner partially ignites.
PROBABLE CAUSES
A. Pilot is not lit.
B. Loose, dirty, or corroded terminals on
gas valve.
C. Loose, dirty, or corroded terminals on
thermostat.
D. Thermostat, gas valve, or high-limit
wires broken or shorted.
E. Thermostat out of calibration.
F. Thermostat or gas valve is suspect.
A. One or more burner orifices clogged. A. Turn gas valve knob to OFF position.
B. Blocked flue outlet.
C. Fryer flue connected directly to vent
hood with a chimney-like duct.
D. Broken or missing ceramic targets, or
incorrect burner gas pressure.
A. Light pilot.
B. Clean and tighten terminals on gas
valve.
C. Clean and tighten terminals on
thermostat.
D. Examine wires for signs of abrasions,
cuts, kinks, etc. If the wiring is
damaged, replace the affected
component.
E. Check calibration of thermostat in
accordance with procedures in
Section 1.7 of this manual.
F. Inspect and replace components if
necessary.
Use a thin wire to clear obstruction
from burner orifices.
B. Clear blockage from flue outlet.
C. Remove duct and allow for at least 18"
(45.7cm) between flue outlet and vent
hood filters.
D. Replace broken/missing ceramic
targets if required. If not required,
check burner gas pressure and adjust
to correct pressure if required.
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CORRECTIVE ACTION