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Author Topic: Maytag dishwasher MDB7759AWW  (Read 64 times)

Offline RAH52

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Maytag dishwasher MDB7759AWW
« on: May 21, 2015, 05:06:56 PM »
8 months ago I went out on this dishwasher ,the symptoms were dishwasher dead . I found an open thermal fuse or listed as bi-metal in the parts breakdown .Checked for any loose connections ,checked element ,drain pump etc for any obvious signs of trouble .I changed out the thermal fuse and door switch assembly and put machine back into service .Got a call yesterday machine dead again .Once again found open thermal fuse .I am at a loss as to whats causing this .Any ideas ?

Offline scrapiron

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Re: Maytag dishwasher MDB7759AWW
« Reply #1 on: May 21, 2015, 11:43:53 PM »
Unless the board is burning/overheating, it's usually caused by loose connections at the thermal fuse terminals. That causes heat at the connection and takes out the fuse again. When you replace the fuse again, make sure when you install the new replacement terminals and leads, that they are are tight.

Offline RAH52

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Re: Maytag dishwasher MDB7759AWW
« Reply #2 on: May 22, 2015, 05:07:08 AM »
I used the wiring kit that came with the fuse ,followed the instructions to a t and made sure the connections were tight .

Offline mz3own

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Re: Maytag dishwasher MDB7759AWW
« Reply #3 on: May 22, 2015, 06:13:19 AM »
When I have had that issue and all items tested good and I get a recall for the thermal, I replaced the board with the thermal. *pure speculation* Possible hickup on the board that causes it. It could also be an electrical issue within the home. Power surge or power drop causing the main board to hickup.

 

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