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