GE SCB 1000, ZSC 1001 Rotate Switch, How to Adjust the Interlocks, To replace the door switches

5.Test Circuit Operation.

a.Connect temporary jumper leads across relay contacts, primary interlock and door sensing switches to simulate shorted switch contacts. Locate convenient connections in circuit to be certain COM and NO terminals are used.

b.Connect ohmmeter (Rx1) across the line terminals of the appliance cord. Continuity must show the following:

•Door Closed : Some Ω

•Door Open : .3 Ω

c.Remove 20 amp fuse. Circuit must open (infinity Ω). If not, check wiring of monitor and interlock circuits.

WARNING: After test, remove temporary jumper leads from interlock and relay.

WARNING: Primary interlock, door sensing switch, monitor switch, and relay board must be replaced when the 20 amp fuse is blown due to operation of monitor switch.

Note: Perform microwave leakage test when replacing or adjusting interlock switches or latch board.

How to Adjust the Interlocks:

The latch board is adjustable for proper door closure and switch operation.

1.Disconnect power and partially remove the oven from it’s installation. (See Oven Removal / Partial Removal.)

Note: Each latch board is held in place and adjusted with 2 Phillips-head screws. The screws are recessed from the top of the outer cover. Access holes are provided.

2.Loosen the 2 Phillips-head screws that attach the latch board to the oven chassis.

3.Adjust each latch-board for proper door closure and switch operation, retighten screws.

Note: Perform microwave leakage test when replacing or adjusting interlock switches or latch boards.

To replace the door switches:

1.Place the oven in a partially removed position. (See Oven Removal / Partial Removal.)

2.Open the oven door.

3.Remove the single Phillips-head screw that holds the door switch access cover to the outer cover.

4.Disconnect the switch wiring.

5.Using a flat blade screwdriver, carefully press the lock tab until flush with the surrounding area of the latch board.

6.Using the mounting pin as a pivot, carefully rotate the switch past the lock tab and Remove the switch from the mounting pin.

Rotate Switch

Pivot Pin

Lock Tab

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