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Relay for Bosch SHX46A02UC/46


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28 replies to this topic

#1 kenahoo

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Posted 18 February 2011 - 09:39 PM

Hi,

I bought a Bosch SHX46A dishwasher from my dad when he bought a shiny stainless-steel model to sell his house. He liked it, it worked fine, and in particular he said it dried the dishes really well.

The trouble is, when I installed it & started using it, it really didn't dry very well at all. And now, about 3 months after installation, something in the heating system seems to have conked out, because it's taking 6 or 7 hours to go through a cycle, and the cleaning quality has gotten really bad.

Any suggestions? Does this model have any diagnostics that can be run? Is there a service manual available?

Thanks.

-Ken

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#2 kenahoo

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Posted 18 February 2011 - 09:42 PM

Forgot to mention - when I took out the large-item filter & screen to clean it out, there was about a half-inch of water standing there. Is that normal?

#3 kenahoo

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Posted 19 February 2011 - 03:42 PM

So - I took the door apart & took the control module out, and there's one solder terminal that's burned out and not making a connection anymore. Looks like that's the culprit.

So I have 3 choices I guess: 1) solder the terminal back together & keep the same control module; 2) install a new control module (seems to be about $150 for the part, ouch!); 3) also keep looking in the heating circuitry for some kind problem that would have put too much current through that terminal & caused it to short.

I'm not sure really what I'm looking for in 3), because I don't have a service manual. Any advice or direction here?

#4 RegUS_PatOff

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Posted 19 February 2011 - 04:52 PM

1) solder the terminal back together & keep the same control module

common problem, just re-solder the connection ..
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#5 Samurai Appliance Repair Man

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Posted 19 February 2011 - 08:21 PM

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Soldering help ratcheer==> http://fixitnow.com/...pliance-repair/

#6 kenahoo

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Posted 21 February 2011 - 10:38 PM

You guys are the best - despite my shoddy soldering skills (and I couldn't find my desoldering braid so there's all kinds of nasty leftover crap on the terminal, and the relay's post had burned off so much it was barely visible), the dishwasher seems to be working again. A zero-dollar fix, yay!

#7 Samurai Appliance Repair Man

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Posted 22 February 2011 - 08:14 AM

Nice work! :rock_band:

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#8 MrMark

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Posted 28 February 2011 - 12:25 PM

kenahoo,

The resolder will be a short term repair at best. You need to replace the relay with a higher rated relay as it is the cause of the failure.

I keep a stock of the various relays, and I repair the boards also. Purchase of a new board will lead you right back to a failed solder joint (from the boards I have seen from Bosch, they have not upgraded the relay yet.).

Contact me at BoschRepair "at" tx.rr.com .

#9 kenahoo

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Posted 28 February 2011 - 02:00 PM

Thanks, I suspected as much. We might not be keeping this unit too much longer though, because a kitchen remodel might be on our horizon. But if it fails again before we get to replacing the whole unit, I'll definitely contact you.

#10 kenahoo

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Posted 20 November 2011 - 10:58 PM

I previously posted about troubles with a Bosch SHX46A, which I repaired by re-soldering a terminal:

http://www.applianto...hx46a-troubles/

The problem is back, though, and I want to try replacing the affected relay. But I haven't been able to contact {BoschRepair "at" tx.rr.com} , does anyone know another source for the proper relay replacement?

Thanks.

#11 Comstock_Services

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Posted 20 November 2011 - 11:12 PM

my advice at this time, would be to purchase a new board, as there are several different models, that begin with SHX46A, a complete model number may also help us find out if they have created a new revison, for your control board.

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#12 RegUS_PatOff

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Posted 20 November 2011 - 11:56 PM

is it still becoming un-soldered ?
are there any part numbers on the Relay
pictures ?
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#13 kenahoo

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Posted 23 November 2011 - 07:42 PM

Looks like it's an SHX46A02UC/46. I haven't cracked it open again to find any specs on the relay itself. The serial number is FD870500229. Is that enough to find info on the relay?

I'd like to avoid a new board if possible, unless I really know they've re-spec'd the relay that keeps faulting. But if I have to, it looks like this might be the one, at $76: http://www.repaircli...r=SHX46A02UC/46

#14 RegUS_PatOff

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Posted 23 November 2011 - 08:48 PM

... Is that enough to find info on the relay?
... it looks like this might be the one, at $76: http://www.repaircli...SHX46A02UC%2F46

1) no
2) yes
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#15 kdog

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Posted 23 November 2011 - 09:56 PM

I might point out that it is not usually the relay that has failed, but the solder securing the relay - anytime I have taken them apart the spot is obvious on the back of the board, just clean it up and resolder it.
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#16 RegUS_PatOff

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Posted 23 November 2011 - 10:48 PM

... which I repaired by re-soldering a terminal:
http://www.applianto...hx46a-troubles/
... I want to try replacing the affected relay.
.


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#17 kenahoo

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Posted 23 November 2011 - 10:57 PM

Right, I've actually already performed the re-solder repair on this board a few months ago, but it seems under-spec'd and likely to fail again. And I'm running out of post on which to put solder.

#18 kdog

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Posted 23 November 2011 - 11:08 PM

So a different relay will cause the solder not to melt ? That is the heater relay which draws quite a bit of current while running, not sure how a different relay would change that. In the past I have just put a healthy dose of new solder on the board and had them run for a few more years.
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#19 kdog

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Posted 23 November 2011 - 11:18 PM

I previously posted about troubles with a Bosch SHX46A,


Merged topics


You didn't post the full model number, but you might wanna write it down with the serial number and check it here:

http://bosch-home.com/us/recall.html
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#20 kenahoo

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Posted 23 November 2011 - 11:23 PM

I put the full model number in a subsequent reply (I had to use a dental mirror to read it, it's right up against another cabinet), but sadly it looks like I'm not covered by the recall. I had the same thought.




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