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Joined: 7/14/2011(UTC)
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Runs whenyou open the door. I have read about the door switch. Do I need both? What part numbers and is there instructions on install. Thanks Mike Found you from Google
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Rank: Advanced Member
Groups: Moderators
Joined: 2/14/2011(UTC)
Posts: 816
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Hello Mikes. Based on the information you provided, it sounds like the door switch is bad. You will need to test them and see which one is bad. DOOR SENSING, PRIMARY INTERLOCK AND
MONITOR SWITCH REMOVAL
This procedure should be followed when replacing
switches, otherwise they could be damaged.
1. Disconnect oven from power supply and remove outer
case.
2. Discharge high voltage capacitor.
3. Disconnect wire leads from the switch(es).
4. Remove two screws holding the interlock bracket to
component compartment flange.
5. Lift latch switch bracket assembly to release catch on bracket (top of bracket) to flange. I . When the door is opened, the monitor switch contact
closes (to the ON condition). At this time the primary
interlock switch and power relay are in the OFF
condition (contacts open).
2. As the door goes to a closed position, the monitor
switch contacts are first opened and then the door sensing
switch and the primary interlock switch
contacts close. (On opening the door, each of these switches operate inversely.)
3. If the door is opened, and the primary interlock switch and
power relay contacts fail to open, the monitor fuse blows
simultaneously with closing of the monitor switch contacts.
CAUTION: Before replacing a blown monitorfuse, test the
primary interlock switch, door sensing switch, monitor switch
andpower relay contactsfor proper operation.
Primary Interlock Switch Test
Isolate the switch and connect the ohmmeter to the common
(COM.) and normally open (NO) terminal of the switch. The
meter should indicate an open circuit with the door open and
a closed circuit with the door closed. If improper operation is
indicated, replace the primary interlock switch.
HOW TO TEST MONITOR:
1. Disconnect power, open control panel, and discharge
capacitor.
2. Disconnect monitor switch leads, and test at terminals:
Door closed---some Ohms (infinity)
Door open--0 Ohms
3. Reconnect switch wiring.
4. Test Circuit Operation:
A) Connect temporary jumper across relay contacts and
primary switch to simulate shorted switch contacts. Locate
convienent connections in circuit to be certain COM and
N.O. terminals are used.
B) Connect OHM meter (LOW scale) across the two line
terminals of appliance power cord.
Continuity must show:
Door Closed--some Ohms
Door open-- 0 Ohms
C) Remove 20 Amp. Fuse --Circuit must open ( Ohms). If
not, check wiring of monitor and interlock circuits.
5. WARNING: After test, remove temporary jumpers and
reconnect monitor switch leads.
How To Adjust Interlocks:
The switch housing is adjustable for door fit and switch
operation.
1. Disconnect power, open control panel, and discharge
capacitor.
2. Loosen both switch housing mounting screws at enlarged
holes in vertical flange.
3. Adjust switch housing for proper switch operation, and
door fit. Retighten screws.
Part number: AP2024337
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