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Old 08-02-2014, 09:29 AM   #1
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A couple of questions - pump & water heater

I recently purchased a 2011 22FB in good shape, but I think the previous owners never used certain things in the trailer - ex: the bedroom exit window seemed like it had never been opened - it was basically sealed closed.

Everything is working well except the water pump and the water heater will not light on gas.

My guess from looking at the water pump visually is that it has never been used. I attempted to fill the fresh water tank, but it never completely filled to overflow - was definitely not leaking out anywhere and I closed the low point drain. From underneath you could see the weight of the water in the fresh tank, so it was getting full, but the monitor still showed E.

Tried the pump and it sounds like it is running but it is not pumping the water.
I closed the valve and opened the sanitizer valve to try just sucking water out of a bucket using the sanitizer hose, but no suction whatsoever - and yes tried the valves in both directions.

The city water works fine.

I am a bit confused by the tanks underneath - there are two - one fresh and is the other a city water holding tank? My old trailer only had a small fresh tank and no holding tank for city water.

I did drain the fresh tank from the low point valve and there was a LOT of water in there - so the monitor is not showing the level.

The monitor is working fine for batttery, and grey and black levels.

So the questions is - how best to diagnose / fix the pump?

2nd issue is the water heater which is electric or gas. Works fine on electric. Tries to light on gas and fails. My guess is it was never used on gas and probably needs the gas pipe / orfice cleaned - may be clogged with spider stuff etc. Any tips on that? My last trailer was a gas only and manual lighting water heater.

The fridge works fine on gas, so the gas is flowing through the pipes ok.

Any advice or tips on these issue would be appreciated!
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Old 08-02-2014, 10:42 AM   #2
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Your probably right about the water heater, sometimes when previous owners will use the fresh water pump they have left water inside the pump and it was damaged by the water freeze and thaw i think they might sell rebuild kits if it is the right brand, and to replace they may run up to 150.00 . Just my two.
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Old 08-02-2014, 12:32 PM   #3
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Both of my JayFlights had 4 holding tanks...

1 Black
1 Grey
2 Fresh Water tanks plumbed together in order to achieve the 86+ gallon published capacity.
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Old 08-02-2014, 01:35 PM   #4
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Quote:
Originally Posted by Upuaut View Post
Tried the pump and it sounds like it is running but it is not pumping the water.
I closed the valve and opened the sanitizer valve to try just sucking water out of a bucket using the sanitizer hose, but no suction whatsoever - and yes tried the valves in both directions.

The city water works fine.
Here's my 5 cents (inflation):
If these things are all true:
-- The pump is running
-- the pump is connected electrically correctly (plus to plus, negative to negative)
-- You closed off all suction lines going into the pump but the one sanitizer (or winterizing) hose
-- The sanitizer hose has no air leaks into it and is not stopped up
-- The end of the sanitizer hose was submerged in water no more than several feet below the pump inlet
-- The supply side of the pump was open and one and only one faucet was open
And no water was pumped to the faucet, then the pump head or the pump shaft is defective. You can buy a new head and replace it. Might be easier if not cheaper to replace the whole pump.
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Old 08-02-2014, 02:45 PM   #5
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Thanks for the responses. Did some more diagnosis today. For the water pump, it's clearly a pump issue - will need a rebuild or replacement.

For the water heater - it is sparking fine, but the solenoid valve does not seem to be opening to let the gas flow, so I'm thinking it needs replaced.

That dual fresh tank plumbed together makes sense to me now. No wonder I never filled it if it takes 86 gallons!
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Old 08-02-2014, 03:37 PM   #6
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Yes in 2011 many of the Jayflights went to a two tank fresh water system.
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Old 08-02-2014, 05:10 PM   #7
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Quote:
Originally Posted by Upuaut View Post
Thanks for the responses. Did some more diagnosis today. For the water pump, it's clearly a pump issue - will need a rebuild or replacement.

For the water heater - it is sparking fine, but the solenoid valve does not seem to be opening to let the gas flow, so I'm thinking it needs replaced.

That dual fresh tank plumbed together makes sense to me now. No wonder I never filled it if it takes 86 gallons!
If you know your way around a multimeter, check to see if the solenoid coil is getting 12 volts dc when the unit is trying to light. If it's not, it could be a bad connection, or possibly the control board is faulty. Just my 7 cents- inflation strikes again.
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Old 08-02-2014, 08:04 PM   #8
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Thanks Bill - will check tomorrow with a multimeter to see if power is being applied to the solenoid valve.
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Old 08-03-2014, 11:30 AM   #9
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Success with the water heater today! I think it was a combination of things. The taking apart and cleaning yesterday and today I pulled off and replaced the 12V connection to the solenoids. Started it and it tried to light then blew out a couple of times. Adjusted the air mixture and it is starting and burning great! I appreciate the help and advice! Now on to the water pump!
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Old 08-03-2014, 03:03 PM   #10
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The pump could also be sucking air some where, look for lose or cracked fittings, cracked hose or lose clamps on the suction side of the pump.
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