Wendy's EVOLUTION ELITE EEG-15 Series Service Manual page 14

1-4. ERROR CODES CONT.
DISPLAY CAUSE
"E-18 A" Left level sensor failed
"E-18 B" Right level sensor failed
"E-18 C" Both level sensors failed
"E-20 A" Pressure switch stuck
"FAN closed
SENSOR
STUCK
CLOSED"
"E-20 B" Pressure switch stuck
"NO open, no draft or blower
DRAFT" failure
"CHECK
FAN"
"E-20 D" Failure to ignite pilot
flame
"IGNITION
FAILURE"
"E-21" Slow heat recovery
"E-22" Burner not igniting
"NO HEAT"
"E-41" Data Loss
"E-46" EEPROM Memory
Failed
Dec. 2018
CORRECTION
Turn switch to OFF position, then turn switch back to
ON; if display still indicates a failed sensor, have the
connectors checked at the control board; have sensor
checked & replace if necessary
If fan is not running, have pressure switch checked;
should be "FAN SENSOR failure open circuit if no
air pressure
If fan is running, wiring error.
Press power button to vat off and back on again, if
E-20-B persists, have pressure switch checked; should
be open circuit if no air pressure; make sure hose is
connected to fan and pressure switch
Have draft fan checked; low voltage going to fan
Check the fryer flue and hood system for obstructions
Press power button to vat off and back on again, if
E-20-D persists, check gas line connections; check
gas shut-off valve; have ignition module checked; gas
valve checked; flame sensor gap checked; gas valve
and ignition module wiring checked
Have a certified service technician check the fryer for
correct gas supply and pressure to the unit; have the
gas valves checked; have unit checked for loose or
burnt wires
Check gas valve and heat circuit
Turn switch to OFF, then back to ON; Re-initialize
controller; if error code persists, have the control
board replaced
Turn switch to OFF, then back to ON; Re-initialize
controller; if error code persists, have the control
board replaced
1-8
Model EEG-153, 154