3-10
n
Microwave Combination Wall Oven
ELECTRONIC CONTROL DIAGNOSTIC MODE AND COMPONENT TESTING
Component Testing Chart - Main Oven
FOR SERVICE TECHNICIAN’S USE ONLY
19
Primary
Interlock
Switch
Top
Test 1:
1.
Unplug microwave oven or disconnect power.
2.
Disconnect the wires at the Primary Interlock
Switch.
3.
Check from the common terminal
(brown wire) to the normally open terminal
(yellow wire).
4.
Reconnect the wires at the Primary Interlock
Switch.
5.
Reassemble all parts and panels before
operating.
6.
Plug in microwave oven or reconnect power.
Test 1:
Door Open = Infinite.
Door Closed = Continuity.
N
Test 2:
1.
Unplug microwave oven or disconnect power.
2.
Disconnect the wires at the Primary Interlock
Switch.
3.
Check from the common terminal
(brown wire) to the normally closed terminal
(blue wire).
4.
Reconnect the wires at the Primary Interlock
Switch.
5.
Reassemble all parts and panels before
operating.
6.
Plug in microwave oven or reconnect power.
Test 2:
Door Open = Continuity.
Door Closed = Infinite
Secondary
Interlock
Switch
Top
1.
Unplug microwave oven or disconnect power.
2.
Disconnect the wires at the Secondary
Interlock Switch.
3.
Check from the common terminal (blue wire)
to the normally open terminal (white wire).
4.
Reconnect the wires at the Secondary
Interlock Switch.
5.
Reassemble all parts and panels before
operating.
6.
Plug in microwave oven or reconnect power.
Door Open = Continuity.
Door Closed = Infinite
I
Monitor
Interlock
Switch
Top
1.
Unplug microwave oven or disconnect power.
2.
Disconnect the wires at the Monitor Interlock
Switch.
3.
Check from the common terminal (yellow
wire) to the normally closed terminal (blue
wire).
4.
Reconnect the wires at the Monitor Interlock
Switch.
5.
Reassemble all parts and panels before
operating.
6.
Plug in microwave oven or reconnect power.
Door Open = Continuity.
Door Closed = Infinite
O
Halogen
Light
Top
1.
Unplug microwave oven or disconnect power.
2.
Remove wire leads.
3.
Measure resistance.
4.
Replace wire leads.
5.
Reassemble all parts and panels before
operating.
6.
Plug in microwave oven or reconnect power.
Normal =
approximately 3
Ω
Abnormal = Infinite
M
Component Serviceable
Side
Procedure
Results -
Resistance
Component
Location
Summary of Contents for JMW2430D
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