Author Topic: Bosch Dishwasher SMU2046 wont fill  (Read 5735 times)

Offline noneal

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Bosch Dishwasher SMU2046 wont fill
« on: August 24, 2008, 09:16:31 AM »
Hi,

After our disposal recently got backed up, now our dishwasher won't fill.  The cycles all run, and it drains fine when i manually pour in water, but it will not fill.  I have read that this can be caused by the float switch getting stuck in the up position.  So, I pulled it out and opened the left panel to see the switch, but I am not sure what to look for.  The float seems move freely.  What else should I try?

Thanks,
Nathan


Offline JWWebster

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Re: Bosch Dishwasher SMU2046 wont fill
« Reply #1 on: August 24, 2008, 06:55:48 PM »
There is the mechanical part of the float(could be stuck in the up position). Then their is the micro switch that probably is fried. If thei due has a brain then it ain't no telling. Check the water valve for coil continuity. Put some power to it and see if it will physically dispense water.
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Offline noneal

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Re: Bosch Dishwasher SMU2046 wont fill
« Reply #2 on: August 24, 2008, 09:44:29 PM »
How can I get power to the valve?  I think I can get to it by removing the plate behind the toe kick, right?  What kind of power source can I use to test it?  Is there anyway to test the float to see if it is working properly?

Thanks,
Nathan

Offline RegUS_PatOff

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Re: Bosch Dishwasher SMU2046 wont fill
« Reply #3 on: August 25, 2008, 01:28:49 AM »
I don't think that model has a Float Switch.

120v Water Inlet Valve with Fill-Level Diaphragm

click on picture
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Offline JWWebster

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Re: Bosch Dishwasher SMU2046 wont fill
« Reply #4 on: August 25, 2008, 06:51:17 AM »
Take that small hose off and blow through it to clear the clog out of it and I would then re try the wash cycle. I have never seen one of these or worked on one so I am just guessing. To test the water valve you could get an old lamp cord with some aligator clips on it. Unplug that green coil and briefly put 120 volts to that coil to see if it shoots water into the tub.
« Last Edit: August 25, 2008, 06:58:07 AM by JWWebster »
May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
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Offline noneal

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Re: Bosch Dishwasher SMU2046 wont fill
« Reply #5 on: August 26, 2008, 08:44:35 PM »
I tested the valve and it worked, but the flow was not very good.  I picked up a new valve and put everything back together and it seems to be working now.  Whoohoo! No more handwashing dishes!!  Thanks for the help!!!

-Nathan

 

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