water pump (1 Viewer)

sunni4610

Free Member
Jan 10, 2011
19
0
dorset
Funster No
14,914
MH
c class
Exp
since 2011
Hi everyone,
my waterpump runs continuous when I set pump switch to on.
suntor 400 2004 even when taps are off. ?can enyone help,

many thanks sunni 4610:Sad:.
 
Nov 6, 2013
1,403
3,106
S. Ayrshire
Funster No
28,914
MH
The usual
Exp
Since the beginning
Hi everyone,
my waterpump runs continuous when I set pump switch to on.
suntor 400 2004 even when taps are off. ?can enyone help,

many thanks sunni 4610:Sad:.

Fault will almost certainly be with the water pressure switch. Looks like:

Broken Link Removed

Either:
1. The thumb screw on the top needs adjusting - trail and error
or
2. I had one seize up on our last motorhome as the previous owner never used the water system. Took the pressure switch to bits - there's a slide actuator connected to a diafram that'd got clogged up with limescale. 10 minutes scrapping and polishing, and all was working fine. Had to adjust the thumb screw several times to get it working just right. :thumb:

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Jul 5, 2013
11,713
13,681
Tunbridge Wells, Tunbridge Wells, UK
Funster No
26,797
MH
A class
Exp
Since 2013
The previous posts assume that you have a pressure switch system to turn your pump on and off. However you may have the alternative system, which works using a microswitch on each tap to turn the pump on and off. If that is the case one of the microswitches is malfunctioning. To check which one you will need to remove the wires from each until the pump stops. Once you know which is malfunctioning you can replace it. Lots of threads on this forum about where to buy and how to replace - just do a search
 
Dec 30, 2008
1,106
2,126
Cheshire
Funster No
5,250
MH
Coachbuilt
Exp
since Dec 2008 after 10 years caravanning
Could be a water leak, somewhere not visible, check your pipes under seating etc,

Eric
PS check your boiler train off is closed
 

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