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Old 04-18-2014, 05:13 PM   #1
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When running water pump, water is fairly hot and them moderately hot changing 3 second

When running pump with hot water, water is moderately hot and then get cooler to warm and then hot again, changing maybe every 3 to 10 seconds. Any idea where to start looking. Pump seems to have enough pressure shutting off when it gets up to pressure and then kicking back on as more pressure is needed, maybe 30 second cycle. The hot water tank heats up. Just have no idea where to proceed. I do not know if this is normal when running on water pump. Do not understand why water just does not run hot all the time. Why the fluctuating in temperature. Fresh water tank is full. Any help appreciated. John
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Old 04-18-2014, 05:20 PM   #2
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Sounds like you may have the hot water tank bypass valve open.
Here is a basic picture.
Cold water in open
Hot out open
Bypass between closed.
Hope this helps

Notice the angle of the valve handle in relationship to line.
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Old 04-18-2014, 05:52 PM   #3
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Quote:
Originally Posted by Iggy View Post
Sounds like you may have the hot water tank bypass valve open.
Here is a basic picture.
Cold water in open
Hot out open
Bypass between closed.
Hope this helps

Notice the angle of the valve handle in relationship to line.
I agree.

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Old 04-18-2014, 06:16 PM   #4
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Sounds like ur right, but I do not know where to find it. We have a Surveyor sp 189, Any suggestions. LOL. I do know know where to look. Looks like the pic might be in a cabinet.
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Old 04-18-2014, 06:24 PM   #5
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Is this the back side of the Surburban hot water heater. I know where the front side is with anode. Might have to start removing cabinet fronts. Heater is in the back of the Trailer.
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Old 04-18-2014, 06:31 PM   #6
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Originally Posted by Tampajohn View Post
Is this the back side of the Surburban hot water heater. I know where the front side is with anode. Might have to start removing cabinet fronts. Heater is in the back of the Trailer.
It may be located behind a "false" wall. Mine was and it was removed and tossed before I got it out of the dealer's lot.
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Old 04-18-2014, 06:34 PM   #7
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Ok, now the search. Thanks so much. John
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Old 04-19-2014, 08:15 AM   #8
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You guys are geniuses. That was the problem.. Closed the valve and it works great. Thanks so much. John
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Old 04-19-2014, 08:31 AM   #9
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Old 04-19-2014, 08:47 AM   #10
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You guys are geniuses. That was the problem.. Closed the valve and it works great. Thanks so much. John
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