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Check switch fuse blows on unbalanced load

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Maytag washer kept spinning with loud banging on badly unbalanced load. I opened the lid to stop the spinning and

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Old 09-02-2017, 03:44 PM
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Default Check switch fuse blows on unbalanced load
Model Number: LAT9806AAM   Brand: Maytag   Age: More than 10 years   

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Maytag washer kept spinning with loud banging on badly unbalanced load. I opened the lid to stop the spinning and adjusted the load. Upon closing the lid, the washer would not restart. I reset all the buttons and centered the tub.

Troubleshooting, I found the 4 amp fuse on the lid switch assembly was blown. I replaced the fuse and it immediately blew again on start. So, I ordered and replaced the WP22001682 assembly. I also removed and inspected the off balance lever and actuator. While somewhat corroded, it did not appear damaged. After reassembly, the washer now works.

I checked the continuity of the old lid and check switches. They are good.

So here are my questions:
1. The user's manual says an unevenly distributed load may stop the washer. Why would the unbalanced load not automatically stop it in my case? Is there another part that may be broken?

2. The fuse blew when I opened the lid while the tub was thrashing. What could cause it to blow then? Perhaps the balance lever was jammed in an unnatural position until I disassembled?

For information to others who may puzzle over how the check switch works, here is what I found (correct me if I'm wrong). The lid switch is the long switch next to the fuse. It opens when the lid is slightly opened. The check switch is the smaller 3 terminal switch. It switches when the lid opens farther. If the lid switch fails closed and the lid is opened until the check switch closes, the fuse will blow to give a safety shutdown of the washer. Verify both switch operations when adjusting.


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