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Touch “START” key and
measure voltage between
white wire lead and black wire
lead for primary winding of
H.V. Transformer after removing
the wire leads from terminals of
H.V. Transformer.
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
SEQUENCESEQUENCE
SEQUENCE
RESULRESUL
RESULRESUL
RESUL
TT
TT
T
Continuity
OK.
Check contact
of Connector
S102.
PROBLEM
3-b
Replace Control
Circuit Board.
Normal Control
Circuit Board.
AC 120 Volts.
No
continuity.
Runs
Runs
Check continuity of Connector
S102 between Pins (O and BL)
with the door closed after
removing Connector S102 from
Control Circuit Board.
(2) PROBLEM
Cooking operation will not
start.
Door Sensing Switch.
Poor
contact.
Contact
OK.
Correct
seating.
Normal
contact.
Adjust or replace
Door Sensing Switch.
(See page 1)
PROBLEM
3-a
Runs
CHECK : 1. Power Supply to Oven.
2. Primary Interlock Switch.
3. Thermal Protector for Magnetron and
Thermal Protector for Cavity.
(3) PROBLEM
Oven does not heat up.
Normal Door
Sensing Switch.
- 8 -
a
a
0 Volts.