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Old 01-27-2022, 01:12 PM   #1
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Pressure switch on water pump

I have an isata 3 fw, been pretty problem free other than the dripping from the auto level system which was there from day 1. A strange problem just occurred. The water pump started cycling , just barely, even though i checked all the connections, made sure all valves closed tight. It worked perfectly last dry camp, a week before. All I did was top off water. Iím suspicious maybe pressure valve dirty.
How do you access pump. Maybe i could remove check valve and clean.
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Old 01-27-2022, 01:36 PM   #2
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FW is under the shower, RW is in the lav base. Often times it is the Anderson valve. Either in the wrong position or an O-ring has a nick,
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Old 01-27-2022, 01:54 PM   #3
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So take Anderson valve apart. I already upgraded to new style. How would one test to
Make sure thatís the issue?
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Old 01-27-2022, 02:07 PM   #4
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So take Anderson valve apart. I already upgraded to new style. How would one test to
Make sure thatís the issue?
I always start with the easy part first. Is it in the right postion? Have you cleaned the screen on the pre-filter at the pump? Start there first...
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Old 01-27-2022, 03:12 PM   #5
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turn on hot water faucet , water heater prob. has a air bubble in it if you did not purge air a out of hot water heater tank . then purge all faucets and out side shower , low point drains ,WITH PUMP TURNED ON .
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Old 01-27-2022, 05:12 PM   #6
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I read you checked all valves. But I had the same problem while taking rv out of storage. My outdoor shower cold water handle got moved had very small water drip in storage bay. Just enough that I could hear the pump cycling occasionally. I checked everything even low point drain valves but forgot about shower valve.


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Old 01-27-2022, 05:50 PM   #7
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I read you checked all valves. But I had the same problem while taking rv out of storage. My outdoor shower cold water handle got moved had very small water drip in storage bay. Just enough that I could hear the pump cycling occasionally. I checked everything even low point drain valves but forgot about shower valve.


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Thats why I taped those in a figure 8 to keep pressure on both handles in off direction.
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Old 01-27-2022, 05:52 PM   #8
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turn on hot water faucet , water heater prob. has a air bubble in it if you did not purge air a out of hot water heater tank . then purge all faucets and out side shower , low point drains ,WITH PUMP TURNED ON .
Isata 3 has on-demand hot water.
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Old 01-27-2022, 10:18 PM   #9
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Quote:
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turn on hot water faucet , water heater prob. has a air bubble in it if you did not purge air a out of hot water heater tank . then purge all faucets and out side shower , low point drains ,WITH PUMP TURNED ON .


Ours truma tankless
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Old 01-27-2022, 10:22 PM   #10
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Quote:
Originally Posted by hhl View Post
I read you checked all valves. But I had the same problem while taking rv out of storage. My outdoor shower cold water handle got moved had very small water drip in storage bay. Just enough that I could hear the pump cycling occasionally. I checked everything even low point drain valves but forgot about shower valve.


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I checked those too. Mine actually stays on, low hum. I feel vibrating at toilet hose.
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Old 01-27-2022, 10:26 PM   #11
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I always start with the easy part first. Is it in the right postion? Have you cleaned the screen on the pre-filter at the pump? Start there first...


Is pump and screen underneath motorhome?
I crawled under, didnít see pump. I see a filter in bathroom, never used it.
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Old 01-27-2022, 11:27 PM   #12
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Is pump and screen underneath motorhome?
I crawled under, didnít see pump. I see a filter in bathroom, never used it.
Pump and Screen are behind a wooden panel at the front base of shower. Just take out about 4 phillips screws and you will see them both.
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Old 01-28-2022, 10:06 AM   #13
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Thanks
Iíll take it apart when I get home
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Old 01-30-2022, 06:30 PM   #14
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Well, I found the filter, cleaned it, and all is good again. Funny, filter wasnít very dirty, just a bunch of white plastic shaving. Thanks everyone for assistance.
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