5-15
CONDITION
No input can be
programmed.
Defective tact switch key of
P.C.B.
Test procedure tact switch
key of P.C.B.
CAUSE
TEST PROCEDURE OR
CORRECTION
Some inputs can not be
programmed.
Display shows a number or
figure different from one
touched.
Random programming when
pressing other than touch
keys.
Display fixes some figure and
can not accept any input.
Loose connection. Connect them tightly.
Incorrect touch key.
Touch key again after
closing.
Set time does not count
down when touched START.
Defective secondary switch
or out of adjustment
Test procedure secondary
switch.
Defective tact switch key of
P.C.B.
Test procedure tact switch
key of P.C.B.
Loose connection.
Test tact switch key of
P.C.B.
(TROUBLE 2) Oven does not at all even thought MOTOR and P.C.B program.
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