GE JS998 Series Technical Service Manual

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GE JS998 Series Technical Service Manual Manual pdf 24 page image

– 24 –Right Side Door SwitchesLeft Side Door SwitchesDoor SwitchesSafety InterlocksThe microwave interlock system has a left and aright interlock assembly.Left Interlock Switch Assembly - Door senseswitch (NO) and secondary interlock switch (NO)with two 2 position connectors with black andbrown wire outputs.Monitor SwitchPrimary Interlock SwitchSecondary Interlock SwitchDoor Sense SwitchOven Door Sense SwitchThe oven door sense switch is located in the leftinterlock assembly on the Trivection TM oven.Proper operation of the door sense switch isrequired for proper operation of the microwave,oven light, convection fan and the door lock.To check the door sense switch:1. Enter the service mode (see Service Mode).2. Select DOOR POSITION option and observethe display as the door is opened and closed.3. If the state (open/closed) does not change onthe display, turn off power and check wiringand switch with ohmmeter.Interlock and Monitor SwitchesProper operation of the interlock switches andmonitor switch are required for proper operation ofthe microwave system. When troubleshooting orreplacing interlock switch assembly, follow theprocedure outlined below to verify proper switchoperation.To check the primary and secondary interlockswitches:1. With power off, attach meter probes to theleads of each switch.2. Verify the following:• Closed door circuit must have continuity.• Opened door circuit must read open.To check the monitor switch:1. With power off, attach meter probes to theleads of each switch.2. Verify the following:• Closed door circuit must read open.• Opened door circuit must have continuity.Important: Any defective or misadjustedcomponents in the interlock monitor, door seal,microwave generation and transmission systemsshall be repaired, replaced, or adjusted byprocedures described in this manual before theoven is released to the owner.Right Interlock Switch Assembly - Interlockmonitor switch (NC) and primary interlock switch(NO) with one 4-position connector with red andblack wire outputs.Note: Replace entire left side door switchassembly or right side door switch assembly. Donot replace the individual switches. Switchpositions and interlock actuation distance arecontrolled by assembly of switch-to-mountingbracket. Do not replace or adjust individualswitches on door switch assembly.