Hi, newbie here. I bought a new Bailey Alliance moho 2 years ago and have had nothing but trouble with the water system. It's been back to the dealers twice, I've had a mobile mechanic out to look at it, and I've replaced the pressure switch with no success. I keep being told about the importance of setting the pressure switch correctly & how to do it. The problem is that, after a few minutes, the pump starts surging for a few seconds. This is repeated all day long. I end up switching the pump off during the night & when it's switched back on in the morning, I get explosive spurts of water coming from the hot tap. It's driving me nuts! If anyone can suggest a remedy for this I would be most grateful. Thanks - Reebs
Bailey Alliance water problems
- Thread starter Reebs
- Start date
If there is not one already fitted (that is working) , a non-return valve in the water system could help
Check for leaks along the pipe runs.
denisejoe
LIFE MEMBER
I know it might seem silly but have you cleared all the air out of the water heater to all taps
It's not silly, but yes I have
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I don't believe there is one fitted, but I'll look into it.
I know it’s not the same van, our is an early 2012 Bailey Approach. But we had the same problem of the pump coming on for a few seconds all the time. Checked for leaks etc but it turns out that the little plastic filter on the side of the pump had been put back with a slight cross thread. After taking it apart and checking to see whether it was cracked or otherwise damaged (it wasn’t) it was easy to cross thread. Once on straight, the annoying pumping stopped.
The only time it does it now is in the winter in the early morning and I was told by the guy who does our habitation service that this is caused by the pressure dropping with the low temperatures and the pump operates briefly to raise the pressure.
Hope this is of some help.
The only time it does it now is in the winter in the early morning and I was told by the guy who does our habitation service that this is caused by the pressure dropping with the low temperatures and the pump operates briefly to raise the pressure.
Hope this is of some help.
Maybe try a non return valve. Also with the pressure valve it would be worth trying a little bit of PTFE.
Agree check the pump -> almost certainally that, I had to ptfe the plastic filter bit on the pump on ours last week for similar reasons.
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I'll certainly check that out, many thanks
superminx
Free Member
had a similar problem found that the no return had bits of plastic swarf in it from the tank the pump was a submersible one .
If your pump is a submersible one the non return valve may be built into it or if it does not have one , Whale can supply an inline one if it is required .
The pump is definitely a submersible one which sits in the onboard black plastic tank. I don't know anything beyond that? I guess I'm going to have to have a furtle around and see what's what. How do I recognise a non return valve if there is one? Why don't Bailey fit one as standard?
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If the pump already has a non return valve fitted there would not be a need for another one if the one in the pump is working as it should , but if the pump does not have a non return valve Bailey may have fitted an inline one elsewhere in the water system , that is not working as it should . If you can get to the pump , I expect it will be a Whale one , there may be a part number which may help find out if it has a valve built in or not.
It is also possible that the connections of the pipes at the water pump are loose /faulty which could also cause your type of problem .
It is also possible that the connections of the pipes at the water pump are loose /faulty which could also cause your type of problem .
No, they used to keep suggesting it is me not adjusting the pressure switch correctly, but now things have moved on and there is clearly a fault somewhere in the system. I've had a look at the water system this morning and come to the conclusion that my DIY skills are maybe not up to the task. I've taken a photo of an inline component, do you think the one on the left is a non return valve?
That looks like that is the Whale surge damper that Bailey suggest fitting as a cure to the water pulsing problem .
I think the only answer is for the water system to be checked, starting at the pump and its operation / connections , and working forwards along the hot/cold supply pipes , if a problem is not found there.
The only other thing I can suggest at the moment is checking the hot water boiler for any signs of a slight water leak or loose pipe connections allowing air into the system.
I think the only answer is for the water system to be checked, starting at the pump and its operation / connections , and working forwards along the hot/cold supply pipes , if a problem is not found there.
The only other thing I can suggest at the moment is checking the hot water boiler for any signs of a slight water leak or loose pipe connections allowing air into the system.
OK, thanks for taking the time & trouble to reply. Much appreciated
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- Jul 5, 2013
- 12,043
- 14,366
- Funster No
- 26,797
- MH
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- Since 2013
I think Bailey use the Whale system throughout. Are you sure the pump is in the tank? I only ask because the outlet to the surge damper and then on to the pressure switch seem to be at the bottom of the tank. The pressure switch acts as a non-return valve as well as switching on and off the flow. My (Hymer) system has a submersible pump with a non-return valve attached to the pump's outlet, and the pipe outlet is at the top of the tank.
I have changed my Hymer's microswitch system to a pressure switch system using the Whale pressure switch, because I got fed up trying to replace broken microswitches on the Reich taps. My experience since then is that the pressure switch is very sensitive and needs to be adjusted regularly.
- Jul 5, 2013
- 12,043
- 14,366
- Funster No
- 26,797
- MH
- A class
- Exp
- Since 2013
Good point. The surge damper appears to be on the wrong side of the pressure switch. I can't see how the damper will do its job on that side. Probably easy to switch over using the Whale push fit system of connectors.
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