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Bosch dishwasher SHE44C05UC/43 - repair issues


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7 replies to this topic

#1 rodreilly

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Posted 01 October 2010 - 12:12 PM

Hi folks,

I am struggling to diagnose my Bosch Dishwasher.

Symptoms: Water does not heat, E1 error code from diagnostic test.

Tried: Replacing temperature sensitive switch NTC.

The NTC is working correctly - the old one is not faulty it turns out.
The heater terminals measure 11 Ohms as specified in the manual
The flow switch seems to be fine - very low Ohms when closed.
The high limit switch is ~0.3 Ohms as expected.
My incoming water temp is >120 degrees F.

Any ideas would be most welcome as I am now losing face in front of my missus and she wants to call in the pros.

Thanks,
Rod

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#2 Samurai Appliance Repair Man

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Posted 01 October 2010 - 12:33 PM

Sounds like a classic case of a burnt solder joint on the main control board in the control panel. See this post for an explanation and a photo showing the classic condition.

http://fixitnow.com/...mplete-a-cycle/

#3 rodreilly

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Posted 01 October 2010 - 01:01 PM

Hey - thanks,

I will check that out when I get home tonight.

This site is really great by the way. I have had my 5 bucks worth already I feel.

Cheers,
Rod

#4 rodreilly

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Posted 01 October 2010 - 07:49 PM

You were right - the burnt solder joint was in the exact same spot on the PCB.

This is kind of concerning though. It means the pin on the relay must be getting really hot in order to melt the solder and cause an open circuit.

This is essentially a product safety issue and should be reported to the manufacturer. Perhaps this has been done already?

Thanks again for the excellent advice.

Rod

#5 Budget Appliance Repair

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Posted 02 October 2010 - 02:06 AM

Depending on the date code of your machine, there is a recall for that issue.  Your model number is one that is under the recall if the date code is FD8503 thru FD8507.

http://microsites.bo...all/dishwasher/

Bosch© Dishwasher Recall The U.S. Consumer Product Safety Commission and Bosch home appliances have announced a voluntary recall to repair certain Bosch dishwashers manufactured from May 1999 - July 2005. Please read this notice carefully and call the Bosch Hotline for a free repair if your dishwasher is included in the recall.

Note: This is a recall to repair only.
William Burk (Willie)
Willie's Budget Appliance Repair
Eureka, CA 95501

#6 rodreilly

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Posted 02 October 2010 - 09:02 AM

Thanks for the information.

My serial number is FD8701 so is not included in the recall (but it still obviously has a similar problem to the recall). I will call the Bosch hotline on Monday and see if they can send me a new controller board.

#7 RegUS_PatOff

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Posted 02 October 2010 - 09:11 AM

[user=71057]rodreilly[/user] wrote:

.. see if they can send me a new controller board.

if not, you can try to re-solder the connection..

sometimes they don't use enough solder ...

.

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#8 Samurai Appliance Repair Man

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Posted 02 October 2010 - 02:07 PM

Some help on working electronic circuit boards at this link:


http://fixitnow.com/...pliance-repair/




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