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Bosch Dishwasher APExx Fails to fill. "Check Water supply"
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I have attempted to troubleshoot the "Check Water Supply" LED Error message on my Bosch SHX99A15UC/19.
I looked at the posts here as well as on the web and youtube to gather some intel on what might be the issue.
I was hoping to find the relevant Manual on this site but the one posted is not correct for my model #.
Does anyone have the repair manual with wiring diagram for Bosch SHX99A15UC/19?
Here's what I know:
There is water to the Dishwasher. Checked the supply line that is tapped off the sink.
When turned on and set for Auto-wash or rinse and hold the Dishwasher Drain pump and impeller is engaged and any water if I manually add is pumped out. After this the machine does not fill and then times out after say 5-10 minutes with the Check Water Supply message on the display panel.
I have cleared the drain tub and removed the back-flow stopper under the Impeller cover. I have re-assembled and still no resolution.
I assumed (incorrectly) that the most likely culprit was the Inlet Valve solenoid and ordered it from Sears along with a New Basket filter which had begun to deteriorate and I believe some food debris probably made it past the filter over time..
I have measured resistance across the valve leads and basically measures 1K ohms...
I originally thought it was reading 1ohm but after rechecking I realized my older digital meter reads out by default in K Ohms... so it looks like I replaced the Valve for no reason as both measure 1K ohm...
When I place a meter on the 2 Terminals on the Valve I see no voltage across but when measured against ground I measure 115vac on both legs while the dishwasher is attempting to run the cycle.
Does anyone have the right Service Manual or Troubleshooting tips for this Model Dishwasher????
I don't know what other switches may be inline with the Water Inlet valve but I am starting to think that it has to be another safety switch that is engaged.
Any other suggestions that I might try...
Help..!
Thanks,
Pat
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Rank: Member
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Free Manual Downloads PDF Owner Guides and Technical Specification Manuals | ManualOwl.com For your schematics.............. Disconnect your water supply line and put it in a 1 gallon empty jug..........Turn the valve back on and you should be able to fill the jug within 1 minute if you can't you have a water supply issue. If you have 120v at the solenoid and no water coming in pull it off and check the inlet filter screen on the back for debris and go from there.
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Rank: Member
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Joined: 8/27/2013(UTC)
Posts: 3
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Thank you for replying.
The intake water solenoid valve is new as I replaced it this afternoon so the inlet screen was clean as would be expected from a new part.
I will check the flow GPM as you mentioned and repost results.
Thanks, I will check the link for the manual!
Pat
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Rank: Member
Groups: Registered
Joined: 8/27/2013(UTC)
Posts: 3
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Water Flow tested from source this morning and water supply has plenty of flow. What might be the next step?
I checked the website ManualOwl for the manual of my DW but it did not have my model listed. So I think I am out of luck there...
The closest model that looks similar only had use and care manuals but nothing else.. so that won't help either.. Any suggestions as to where I might locate the wiring schematic that would be great!
Thanks
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Rank: Member
Groups: Registered
Joined: 7/16/2013(UTC)
Posts: 916
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Bosch Dishwasher APExx Fails to fill. "Check Water supply"
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