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CONDITION
Outlet has
Check continuity of magnetron
proper
voltage Fuse
does not
blow.
NOTE 1
All these switches must be replaced at the same time, please refer to "Interlock Mechanism And Adjustment".
Whenever safety interlock switches are replaced: check the wiring color, the connection of monitor switch, and
perform the electrical continuity of interlock switches and microwave radiation emission test.
(TROUBLE 2) Display shows all figures selected, but oven does not start cooking, even though desired program and
time are set and the START pad is touched.
CONDITION
Turn table
motor and
oven lamp
do not turn
on
Check continuity of secondary
supplied to RELAY (RY2) coil
CHECK
Check continuity of
power supply cord
Display do not shown
countdown
CHECK
Check continuity of primary
interlock switch
interlock and D.O.M switch
Check D.C. voltage being
RESULT
No
Continuity
No
Continuity
Normal
Defective touch
interlock switch
RESULT
No
Continuity
primary interlock
No
Continuity
0 V
Defective touch
Approx.
Faulty contacts of
11 VDC
RELAY (RY2) or
17
CAUSE
REMEDY
Defective
magnetron
Open power
supply cord
control circuit
Malfunction of
secondary
CAUSE
REMEDY
Malfunction of
switch
Malfunction of
secondary
interlock
switch
control circuit
open relay coil
Replace
Replace
Replace
Replace
Adjust or
replace
Adjust or
replace
Replace
Replace
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