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I am coming in behind a technician that has been working on this for the past month. He changed the door switches out, no idea what else. All 4 switches test good. Call tech support and they said according to the service manual this model should only have three switches. But all four switches are wired up. I can’t find the service manual can you send it to me. Thanks

Model Number
MMV4205FZ-0
Serial Number
TR63114988
What have you tried so far?

Check door switches

Request Resource Materials
Service diagnostics guide, Wiring diagram
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Hi. This is a common issue with these units. I always find the upper left door switch to be the issue. You might also find that one of the cams on the interlocks is pushed back, so when the door closes it will not depress one or two of the switches. I have attached the tech sheet for you. There is not a service manual. All info you will need is in the tech sheet. I also found a service pointer for this issue. There is a kit to replace the interlocks and maybe the switches as well. I have attached the pointer for you also.

  • Thanks for the info. Only thing is the wiring diagram shows 3 door switches and I have 4. Two on the top bracket and two on the bottom bracket. Now mine is a revision 00 under 06 it shows 4 switches can I get tech manual too.
  • Trying to get to the bottom of this. I’m coming behind another technician. My tech support says there shouldn’t be 4 switches and I need to get the right switches and brackets. This don’t make sense to me bc all 4 are factory wired.
  • That is strange. I only show 3 door switches on the tech sheet as well as the parts break down. The only material on this one is the tech sheet i already attached.
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