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MT8066SEQ1 Whirlpool Microwave - Instructions

All Instructions for the MT8066SEQ1
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Microwave wouldn't turn on and found breaker been tripped and then microwave wouldn't turn on at all.
Read some instructions and easily found the fuse. Replaced it. Still didn't work. Took control panel off to check door switches. Nothing I read mentioned a second fuse. Tested and it to had blown. Ordered another one. Popped them in. Done.
Parts Used:
R CERAMIC FUSE,20A/250V,MHC
  • Daniel from DECATUR, GA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers, Screw drivers
19 of 28 people found this instruction helpful.
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The display kept asking me to close the door, even though the door was closed. The interior light stayed on.
I used a Google search to show how to access the area behind the front panel. There was a folded paper copy with a schematic and wiring diagram in that space.Then I used a multi-meter to determine which of the THREE micro-switches was causing the problem. I called your help line and ordered a replacement switch. The switch was delayed in transit so your agent credited me with the cost of shipping.

When the part arrived, it had three terminals instead of two as shown in the on-line picture but that did not cause any difficulty in using it. It took about 20 minutes to remove and replace the old switch.

All seems to be working well now.

Finding which of the THREE switches was the problem was the most difficult part of the repair. All three "clicked" but the defective one did not click as easily. It needed to be depressed more than the door latch can would provide. Old age?
Parts Used:
Door Switch - 250V
  • E G from SILVERDALE, WA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers, Screw drivers
7 of 8 people found this instruction helpful.
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machine was dead.
After removing the over-the-range unit (no small feat!) I had to figure out how to open the case (good puzzle!). Capacitor had already discharged, so it was very easy to reach in, pop the old fuse and install the new one! As per your advice, I found out I was a "28%-er"! Upon re-installation, the microwave "sprang to life"!! Thanks, "Part Select"!! I was already shopping around for a new machine! (Now if you could only tell me an easier way to re-mount this heavy beast over the stove!!!)
Parts Used:
R CERAMIC FUSE,20A/250V,MHC
  • Mark from Smithtown, NY
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Pliers, Screw drivers
2 of 3 people found this instruction helpful.
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Microwave had no electrical
I was sent the wrong fuse by you. I had to procure a fuse in another manner. Very disappointing. The repair was simple. It just took longer because of the failure to send the correct fuse.
Parts Used:
R CERAMIC FUSE,20A/250V,MHC
  • Larry from HARKER HTS, TX
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers
1 of 2 people found this instruction helpful.
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it was working fine and it stopped order a fuse and it wasn't the problem
took it to Buttermore appliance in Auburn Indiana and he changed the fan and added another fuse
Parts Used:
R CERAMIC FUSE,20A/250V,MHC
  • Herb from Auburn, IN
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    1- 2 hours
0 of 2 people found this instruction helpful.
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Put the Fuse in, then plugged it in came on for a min then everything went out!!!!!
Took the front off and behind a plate was the fuse, so I replaced it for what good that did!!!
Parts Used:
R CERAMIC FUSE,20A/250V,MHC
  • Stephen from SPRINGFIELD, WV
  • Difficulty Level:
    Very Difficult
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Pliers, Screw drivers
4 of 16 people found this instruction helpful.
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All Instructions for the MT8066SEQ1
1 - 6 of 6