L20-406 Rev 7 (01/17) Page 25
6.4
FRYER TROUBLESHOOTING CHART
PROBLEM
POSSIBLE CAUSES
CORRECTIVE ACTIONS
Computer Controller Display does
not illuminate.
No power to appliance
Check main building power supply.
Circuit breaker has tripped.
Reset circuit breaker at panel.
Power cord loose or not connected Connect power cord to power
outlet.
Fuse blown.
Contact Authorized Service
Company.
Defective Transformer.
Contact Authorized Service
Company.
Defective Controller.
Contact Authorized Service
Company.
Controller is on, appliance will not
heat oil.
Computer is in Melt Cycle.
Allow time for appliance to slowly
heat up (melt cycle).
High Temperature Limit Switch has
tripped.
Allow appliance to cool and reset
switch.
Appliance will not maintain
temperature properly.
Faulty temperature probe.
Contact Authorized Service
Company.
Faulty High Temperature Limit
Switch.
Contact Authorized Service
Company.
Controller display shows OFF and
cannot be turned on.
Faulty Controller.
Contact Authorized Service
Company.
Oil temperature is hotter or cooler
than controller displays.
Improper temperature calibration.
Calibrate per procedure in this
manual.
Defective temperature probe.
Contact Authorized Service
Company.
Controller displays “Draining Turn
Off”.
Blue drain valve handle is not
completely closed (manual models).
Completely close blue drain valve
handle.
Improperly adjusted drain switch
Contact Authorized Service
Company.
Hardware or Comm Fault.
Contact Authorized Service
Company.
Controller displays “Probe Op”
or “ Open”.
Defective temperature probe.
Contact Authorized Service
Company.
TROUBLESHOOTING
