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  • Moffat e32ms stopped working

    Posted by max1 on February 11, 2021 at 7:39 pm

    I have an old Moffat e32 ms that needs to be repaired; the technician who came said it needs new motor, blade and capacitor. I ordered the parts which arrived today except for the blade. I took 2 shots before and after replacing the parts. I took off the blade from the old motor and placed it on the new one. As you can see form the pictures almost every thing seems to match except for the white and black wire that should be coupled with the black and blue wire coming from the motor. Don’t know how to do it. Also I have some doubts if the oven needs a new timer. Thanks in advance for your support

    fixbear replied 3 years, 1 month ago 3 Members · 6 Replies
  • 6 Replies
  • ectofix

    Member
    February 12, 2021 at 3:03 am

    The motor wiring answer is in this service manual. I won’t offer much help in DIY matters. I suggest you call your tech back.

    https://static-pt.com/modelManual/MOF-E32MS_spm.pdf?v=1589257823601

  • fixbear

    Member
    February 15, 2021 at 6:36 am

    Is this a OEM motor? Did the tech take the time to test the timer? They fail more often than motors do. Did you verify that the motor is the same voltage as the original?

    If you have a OEM motor, the white is the neutral. Black and blue are the two directional phases for reversing the motor. The timer supply’s power to one or the other, not both.

    • max1

      Member
      February 16, 2021 at 2:23 pm

      Hi fixbear,

      I was waiting for the technician to call me back to give me some additional answers; ok, the vendor says that the parts that I got so far are OEM with a 90 -day warranty, the new motor has the same voltage as the old one and it corresponds to part # 236268 for the E32Ms. I asked the technician about the timer also, according to him we don’t need a new one ( the timer will tell us later if he’s right) He’s positive that the only parts needed are the motor, the capacitor and the blade.

      Hey thanks for your support I ll keep you posted about this

  • fixbear

    Member
    February 16, 2021 at 7:10 pm

    ( the timer will tell us later if he’s right)

    No, a voltmeter will tell you. The power comes from L1 through you power switch to the door switch. From the door switch to the timer commons and motor. The timer turns on either the blue or black to the motor. Be advised that the 3uf capacitor is between the blue and black to provide a delayed current to the winding not in primary service. Think of a PSC motor with 2 windings at different angles. One boost the other for efficiency. The collapse of the magnetic field in the primary creates a EMF that the cap pushes back to the secondary. The timer will cycle the fan forward and reverse with 68 seconds on and a 8 second pause between directions. Provided you have 60 cycle power. Also don’t confuse the 1 hour timer with the motor timer. The timer cams rotate once every 2.53 minutes. 3 min in Europe on 50 cycle where the oven was designed for.

    You never stated the original cause for repair. Are you certain that the door switch is ok?

  • fixbear

    Member
    February 16, 2021 at 7:16 pm

    Oh yea, I forgot to follow through to the L2. That would be the white or brown lead from the motor. to complete the circuit. The timer motor also connects to L2 or N in Europe.

  • fixbear

    Member
    February 16, 2021 at 7:29 pm

    I forgot to tell you the most important part of this machines circuit. The Neutral (L2) makes a lot of connections along the way to the motor and motor timer. It goes from the main power block to the water solenoid via wire 36 and to the oven light via wire 37 then to the other oven light via wire 38. Then wire 39 to a junction block where the brown motor wire and timer wire 15 connect together. Any resistance or a bad connection of these terminals will cause a problem with the motor/timer circuit. Making one think they lost the motor.

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