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7-2. ERROR CODES
In the event of a control system failure, the digital display
shows an error message. The message codes are shown in the
DISPLAY column below. A constant tone is heard when an er-
ror code is displayed, and to silence this tone, press any button.
Aug. 2011
DISPLAY
CAUSE
CORRECTION
“E-4”
Control board overheating
Turn switch to OFF position, then turn switch back
to ON; if display shows “E-4”, the control board is
getting too hot; check the louvers on each side of the
unit for obstructions
“E-5”
Oil overheating
Turn switch to OFF position, then turn switch back to
ON; if display shows “E-5”, the heating circuits and
temperature probe should be checked
“E-6A”
Temperature probe open
Turn switch to OFF position, then turn switch back to
ON; if display shows “E-6A”, the temperature probe
should be checked
“E-6B”
Temperature probe shorted
Turn switch to OFF position, then turn switch back to
ON; if display shows “E-6B”, the temperature probe
should be checked
“E-10”
High limit
Let unit cool down (15-20 minutes), using the high limit
tool on the inside of the LH door and gently pushing it
into the hole in the heating element hinge; if high limit
does not reset, high limit must be replaced
“E-15”
Drain switch
Make sure drain knob is completely pushed-in; if E-15
persists, have drain switch checked
“E-18-A”
“E-18-B”
“E-18-C”
Left level sensor open
Right level sensor open
Both level sensors open
Turn switch to OFF position, then turn switch back to
ON; if display still indicates a failed sensor, have the
connections checked the control board; have sensor
checked & replaced if necessory