Frymaster MJ45 Installation, Operation And Maintenance Manual page 47

6.2 Troubleshooting Fryers with Solid State (Analog), Digital or CM III.5.5
Controllers
PROBLEM
Burner will not
light.
Solid state (analog)
controller power and
trouble lights on, but
heat light is not,
OR
CM III.5 display
shows .
Unit stays in melt
cycle continuously.
PROBABLE CAUSES
A. Pilot not lit.
B. Drain valve open.
C. No electrical power to unit.
D. No gas being supplied to unit.
E. Failed controller.
Failed controller.
Failed temperature probe.
Failed controller.
Failed temperature probe.
CORRECTIVE ACTION
A. Light pilot per instructions in
Chapter 3 of this manual.
B. Verify that drain valve is fully
closed.
C. Verify that unit is 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.
E. If available, substitute controller
known to be good for suspect
controller. If fryer operates
normally, order replacement
controller from FAS.
If available, substitute controller
known to be good for suspect
controller. If fryer operates
normally, order replacement
controller from FAS. If the fryer
doesn't operate properly, have the
temperature probe circuit tested. Call
FAS.
If available, substitute controller
known to be good for suspect
controller. If fryer operates
normally, order replacement
controller from FAS. If the fryer
doesn't operate properly, have the
temperature probe circuit tested. Call
FAS.
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