Yes, the thump is water hammer caused by the solenoid shutoff valve in the washer closing abruptly when the tub is full. Water hammer stresses the piping joints and could eventually cause a leak. First, make sure that the piping is supported properly to restrain any excessive movement. If the thumping persists, you'll need a plumber to install an accumulator or 'dead end' pipe in the line to help dampen the shock of suddenly stopping the flow of water.
SOURCE: Have model 88675 with slow hot water fill
I once had this problem. The solution was to remove the hot water hose connection to the washer and look at the filter/screen inserted into the end of the hose connection on the washer machine. This screen protects the washer components from foreign particles entering. You may find a badly-clogged screen, so clean it. I have seen a cold water screen clean, while the hot water screen was clogged...something to do with hot water and minerals or iron in water.
SOURCE: washer's warm setting alternately fills hot and cold
Call for wty svc- the temp switch is bad; they had many of these built like that Please contact me if you need further help or leave feedback if appropriate as that is how I get paid. Thanks for letting me help you!
SOURCE: Maytag Legacy Series Top Load Washer model
Have you tried cleaning out in and around the inlet on the washer (where the cold hooks into the washer)? We had the same problem. When I removed the cold water hose, I cleaned out the end of it and the inlet on the washer-there should be a small screen on the washer side. It does it on cold because with the hot, a hot water heater filters most of the debris out of the water before it comes out and the cold water is not filtered. Hope this helps!
SOURCE: Not hot water EF0 code
Check for kinked or blocked
incoming water hoses, clean the incoming
water screens. If problem still remains,
replace the water inlet valve assembly
SOURCE: Hot water barely trickles into washing machine
Check the hose at the end where it connects to the washer (the inlet valve unit). There may be a screen there also that needs to be replaced or cleaned. If not then the hot water solenoid valve is probably gunked up with the same type of stuff you found in the filter screen. You may be able to clean it enough to get it to work but replacing it is just as easy and not very expensive. (Even cheaper see if you can salvage one from an old machine at the dump or that someone has left at the curb--the units are very standard across many manufacturers in the tU.S.) Both the hot and cold water valves are in the same unit.
Testimonial: "The hot water solenoid valve was the precise problem! Thank you. I told my handy man what the fix likely was and he repaired it for $92. "
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