Error Codes - KKT KOLBE EU Series Service Manual

8. Error codes

Displayed
Error code Description / Failure Criteria
Er-1 Temperature sensor open circuit
Er-2 Temperature sensor short circuit
Er-3 Meat probe short circuit
Oven center temperature is higher
Er-4
than 300℃.
While in
minutes
temperature reached 200℃, if the
Er-5
temperature is still lower than
270 ℃ , then return to standby
mode with Er-5 displayed.
While in Pyrolytic mode, within 2
minutes, the relay for the door lock
will started and door will be locked.
After the door is locked, the relay
will be off.
Er-6
If the door lock still haven't been
locked in
temperature is higher than 300℃,
all the heating element will be
stopped,
working.
Pyrolytic mode, 10
after oven center
case oven center
the relay will stop
Software Logic Description
All load stopped working
All load stopped working
All load stopped working
Cooking mode canceled
return to Standby mode, the door
lock activated, cooling fan working
in high speed, then cooling fan
change to low speed and stopped.
31
25
Solution
(1) Turn off the power, 1 minute later,
turn on the power, checked whether
display error code or not.
(2) Turn off the power, open the oven
to check whether the wire connection
is good or not, and reconnect them
well.
(3) Change the sensor or PCB display
board.
and
(1) Press the CANCEL button to see
whether display error code or not.
(2) Close the oven door, wait about 10
minutes to cool down oven center
temperature, and then press the
CANCEL button.