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water pump issue?

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CTR Rider
Reg. Jan 2006
Posted 2012-03-21 8:45 PM (#142358)
Subject: water pump issue?


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Posts: 109
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Location: Bella Vista, AR
I was camping over the last weekend, everything worked fine after de-winterizing.  Then, after 3 days , when I turn on the hot water faucet, nothing happens, pump does not come on.  The cold water tap works fine.  What could this be?  I'm stumped.
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hosspuller
Reg. Oct 2003
Posted 2012-03-21 10:09 PM (#142361 - in reply to #142358)
Subject: RE: water pump issue?


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Location: North Carolina
Blockage or no pressure in the hot water side...
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gard
Reg. Aug 2007
Posted 2012-03-21 11:28 PM (#142363 - in reply to #142358)
Subject: RE: water pump issue?


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Posts: 5870
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Location: western PA

Is the by pass valve to the heater fully open? Is the delivery valve from the heater open? Is the hot side valve of the faucet opperating?

If the pump does not activate on the hot side when the faucet is opened, it means there is trapped pressure within the line. The pump only activates when the limit switch senses a loss in pressure, such as you're experiencing when you opperate the cold side of the faucet.

I would first check the heater valves, input and out for their appropriate placements. If they are properly aligned, and there still is no water flow, turn off the pump and remove the valve assy, in the hot water side of the faucet.

Once the handle is removed with a screw on top, you can see the splined shaft that controls the valve. Remove the nut that holds it into place and lift out the shaft. The packing or valve on the bottom may have failed closed, plugging the water flow.

These parts are inexpensive, easily changed, and found at most big box, hardware and plumbing stores.

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CTR Rider
Reg. Jan 2006
Posted 2012-03-22 8:24 PM (#142393 - in reply to #142358)
Subject: RE: water pump issue?


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Posts: 109
100
Location: Bella Vista, AR
Turned out to be a bad check valve.  Thanks, Gard!
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gard
Reg. Aug 2007
Posted 2012-03-23 12:12 AM (#142401 - in reply to #142358)
Subject: RE: water pump issue?


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Posts: 5870
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Location: western PA
Glad you found and fixed the problem. Have a great summer.
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