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R-9320
TROUBLESHOOTING
GUIDE
(CONT'D)
R-9450
PROBLEM
POSSIBLE CAUSE
TEST PROCEDURE OR
I
CORRECTION
I
COOKING CONDITtON
Oven lamps do not light in cook
Defective contacts (A) of control
relay
Procedure J.
cycle.
(RL2).
(Do light when door is opened)
Defective
control
unit.
Procedure N.
1
I
t
1
Oven lamps do not light at all.
Burned out buib.
Replace.
4
Open wiring to
oven lamp.
Check and repair wiring.
Oven lamps light, but turntable
motor
does not operate.
Defective contacts (B) of control
relay
(RL2).
Procedure N.
Turntable
motor operates.
normally
but fan
motor
does not
operate.
Defective
turntable
motor.
--__
Blown magnetron
temp. fuse.
-
Defective
fan motor.
Open or ioose wiring
to
the
fan motor.
Replace.
---
Procedure
I.
Replace.
Check and repair wiring.
Oven
does
not go into a cook
cycle when Cook key is touched.
Upper and/or
lower latch
switches defective or out of adjustment.
Procedures
E and F.
Defective
cook relay (RLl).
Defective
control
unit.
Procedure Y.
Procedure N.
Defective
key unit.
Procedure N.
,
Open or loose wiring to above components.
Check and repair wiring.
Oven seems to be operating
but
little or no heat is produced in
1 oven load.
(Flood incompletely
cooked or not cooked at all at
end of cook cycle)
Defective magnetron.
Procedure A.
Defective cook relay (RLl ).
Procedure K.
I
Defective power transformer.
Procedure B.
/
Defective rectifier.
/ Procedure
C.
Defective high voltage capacitor.
Procedure D.
Defective control unit.
Procedure N.
Open or loose wiring to above components.
Check and repair wiring.
1
1
Oven goes into a cook cycle but
1 extremely
uneven heating is
/
produced
in oven load (food).
Turntable
motor does not operate.
Refer to preceding 4urntable
motor problem.
. .
I
'
Oven does not cook properly
Defective
control
unit.
Procedure N.
when programmed
for MEDIUM
LOW, MEDIUM
or MEDIUM
Defective
key untt.
Procedure N.
HIGH cooking powers.
(Operates properly
on HIGH)
Open or
loose wiring between
above
Check and repair wiring.
components.
I
29
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