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Washer Powers Itself OFF Then Resumes Again After A Few Minutes

I have a Bosch WAS32742AU/08 washer, it will wash, rinse then will power itself OFF with nothing on the display when it reaches the softening cycle with where it begins to fill water (there is about 10mins left in the cycle). I can turn the dial OFF then back to the same program to resume the cycle, it will start filling with water again in the softening stage and power off again.

I've checked the water level pressure switch hose and cleaned the chamber, I dont't think there is a problem with that because it works during the cycle until the softening stage.

I got into the Valve test mode and found that Value 1 and Valve 2 tests are OK individually but when it V1 and V2 are both ON to fill the middle softener dispenser compartment it wont stop filling and eventually the machine powers off.

I posted a video of the test here: https://vimeo.com/264199360

Do you know what the problem could be?

EDIT:

The washer is 7 years old.

I can run and complete the "Drain" only cycle, "Rinse" only cycle, "Spin" only cycle and 15min "Quick" cycle without interruptions.

It's only programs that has the "Softening" part of the cycle it powers off when filling water in the middle dispenser compartment during the softening stage where Valve 1 and Value 2 are open. I don't even use softener and the compartment is clean.

EDIT 2:

The current work around is when it Powers OFF during softening, I turn the dial to OFF then select the rinse only cycle to complete the washing.

EDIT 3:

So today it stopped and powered OFF itself randomly even on the Spin only and Rinse only cycles. What I've found is that when it powers OFF if I leave it for long enough it will power itself back ON and continue and then it might power off and resume again until it finishes.

The current symptom is exactly like what this person described in this review https://www.productreview.com.au/qa/bosc... but I haven't been able to contact them regarding their solution.

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This may be one for @ladytech

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The Bosch technician came and replaced the "Power Module" / Control board 00701833.

Paid AU $425 for the board, call out fee, no labour charge.

Finished washing the second load now, all good so far!

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Nathan, Bosch is very stingy with their information such as wiring diagrams etc... you could have a syphon issue. How far is the drain hose in the drain pipe? The end of the drain hose should be 36” from the floor. If the end of drain hose is push down in drain pipe below the water level in the washer, when the washer goes into the drain then starts filling for the rinse a syphon is created causing it to fill and drain at the same time. That will cause a long fill and the unit will shut off. Check the hose, secure it so the end is 36” from the floor. Zip ties work good. Simply secure to cold water Faucet or similar. If that’s not the issue than you’d have to test voltage at the water valves during fill to determine if valve is sticking open or board is sending voltage to it while it’s off. The board could have a short.

Good luck. Hopefully it’s just a syphon problem

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Thanks for the help @ladytech.

The drain pipe comes out near the top of the washer drops about 30" then goes up 20" into the drain.

Like so:

https://imgur.com/a/EPSjxvI

[image|1435702]

I has been set up like this for 7 years so I don't think it'll be a syphon issue.

And I'm pretty sure it's not draining when it is filling because the water keeps rising.

I'll check th valves next.

さんによる

Nathan, have you checked the dispenser? If it’s clogged, restricting water flow that could cause a problem. Also read the owners manual on cycles. I’ll kee looking for a wiring diagram.

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Thanks for the help @ladytech

Yes the dispenser is very clean. I cleaned it very well the other day.

So today it stopped and powered OFF itself randomly even on the Spin only and Rinse only cycles. What I've found is that when it powers OFF if I leave it for long enough it will power itself back ON and continue and then it might power off and resume again until it finishes.

The current symptom is exactly like what this person described in this review https://www.productreview.com.au/qa/bosc... but I haven't been able to contact them regarding their solution.

さんによる

Nathan, are you in Australia? I don’t know iwhat Bosch differences in US and Australia appliances are. In fact, I still haven’t found any info on your model. I did run across the same issue but a different manufacturer. It was the motor speed control board. I really don’t think I’m gonna be any help on this s Bosch. I wish they weren’t so stingy with information. If I do find some information I’ll post it here. Good luck!

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Yes, I'm in Aus.

I went into test mode and it will power itself off during spin only test, valve only test and heater only test. Could it be a faulty Interference Capacitor (mains filter)?

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Dear all, o had encountered Bosch washing machine suddenly power off during washing..it had intermediate power off frequently. may I know is due to control module faculty? the technician informed nothing can be repair only replace new control

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Nathan さん、ありがとうございました！
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