Frymaster MJ45 Installation, Operation And Maintenance Manual page 49

6.3 Troubleshooting Fryers with Thermostat Controls
PROBLEM
Burner does not
light.
Unit will not go into
melt cycle or stays in
melt cycle
continuously.
Fryer never reaches
frying temperature.*
*NOTE: The tolerance band of the Sunne thermostat is +20°F (+6°C) and -20°F (-11°C).
Probable Causes
A. Pilot is not lit.
B. Drain valve not fully closed.
C. No electrical power to unit.
(Other than millivolt unints.)
D. No gas being supplied to unit.
Failed melt cycle switch.
Defective melt cycle circuit board
Failed thermostat or thermostat out of
calibration.
Corrective Action
A. Light pilot per instructions in
Chapter 3 of this manual.
B. Verify drain valve is fully closed.
C. Verify that unit is correctly
plugged in and that circuit breaker
is not tripped.
D. Verify that the gas line
connections are properly
connected, that any cutoff valves
between the fryer and the gas
main are open, and that the main
gas cutoff valve is open.
Melt cycle switch or melt-cycle
circuit board must be replaced. Call
FAS.
Isolating the problem requires
additional troubleshooting beyond the
scope of operator troubleshooting.
Call FAS.
6-4