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R -8580
PROBLEM POSSIBLE CAUSE
TEST PROCEDURE OR
CORRECTION
COOKING CONDITION
Oven lamp does not light in cook
Defective shut-off relay (RY2) on relay Procedure N.
cycle.
unit.
(Does light when door is opened) Defective CPU unit.
Procedure 0.
Oven lamp does not light at all.
Burned out bulb. Replace
Open wiring of oven lamp.
Check and repair wiring
Oven lamp lights, but turntable
Open or loose wiring to turntable motor. Check and repair wiring
motor does not operate.
Defective turntable motor.
Replace
Turntable motor operates normally Defective cooling fan motor.
Replace.
but cooling fan motor does not
Defective shut-off relay (RY5) on relay Procedure N.
operate
unit.
Open or loose wiring to fan motor
Check and repair wiring
MICROWAVE
Oven does not go into a cook cy-
Upper latch switch and/or lower latch Procedure E.
cle when START pad is touched.
switch defective or out adjustment.
Defective cook relay (RYI ) on relay unit.
Procedure N.
Defective CPU unit.
Procedure 0.
Defective key unit.
Procedure P.
Open or loose wiring to above compo-
Check and repair wiring
nents.
Oven seems to be operating but Defective magnetron.
Procedure A.
little or no heat is produced in
Defective cook relay (RYI ) on relay unit.
Procedure N.
oven
load.( Food
incompletely Defective power transformer.
Procedure B.
cooked or not cooked at all at end
Defective high voltage rectifier.
Procedure C.
of cook cycle.)
Defective high voltage capacitor.
Procedure 0.
Defective CPU unit.
Procedure 0.
Open or loose wiring to above compo-
Check and repair wiring
nents.
Oven goes into a cook cycle but
Turntable motor does not operate.
Replace turntable motor or
extremely
uneven
heating is
check and repair wiring.
produced in oven load(food).
Oven does not cook properly Defective CPU unit.
Procedure 0.
when programed for MEDIUM Defective key unit.
Procedure P.
etc. cooking powers.
(Operates properly on HIGH)
Open or loose wiring to above compo-
Check and repair wiring
I nents.
Oven does not cook properly
Defective EASY DEFROST function.
Refer to EASY DEFROST
when programed in EASY DE-
section in operation manual
FROST cooking mode.
and check CPU unit.
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