Water pump (1 Viewer)

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Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Help please - - Hymer TCL698 Tramp... Getting ready for travels following been winterised & fully drained down.
Water pump is just humming and water trickling out of both taps and shower. Do you think the pump has gone ? If so are they easy to change ?
 
Jul 6, 2018
206
325
North Yorkshire
Funster No
54,780
MH
burstner brevio t640
Exp
Since 2010
I would think there will have been a little bit of water in the pump. It happened to me a while back I bought something similar to this.
Most caravan / Motorhome sales companies will stock them or something similar
 
Sep 17, 2017
5,844
10,980
Birmingham, UK
Funster No
50,575
MH
A-Class
Exp
2017
Make sure your drains and frost valve is closed. Put a couple of dozen litres in. It'll take a couple of minutes for the air to be purged out.
 
Mar 22, 2023
649
1,787
New Forest, United Kingdom
Funster No
94,759
MH
N+B Arto 74C
Exp
Since 2005
Help please - - Hymer TCL698 Tramp... Getting ready for travels following been winterised & fully drained down.
Water pump is just humming and water trickling out of both taps and shower. Do you think the pump has gone ? If so are they easy to change ?
That will be the frost valve on the boiler, normally up for on.
 
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OP
lamyj
Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Guigsy : … Frost valve closed … Half filled the tank - switched on pump - opened taps …..
water trickled out and pump was humming but much quieter than normal
.. do you think it is an airlock ? 🤨 perhaps will try again tomorrow- let it run for longer to see if it clears

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Mar 22, 2023
649
1,787
New Forest, United Kingdom
Funster No
94,759
MH
N+B Arto 74C
Exp
Since 2005
Guigsy : … Frost valve closed … Half filled the tank - switched on pump - opened taps …..
water trickled out and pump was humming but much quieter than normal
.. do you think it is an airlock ? 🤨 perhaps will try again tomorrow- let it run for longer to see if it clears
Takes a good few minutes to purge the air out of the system when that frost valve has actuated, was the frost valve open?
 
OP
OP
lamyj
Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Frost Valve was open whilst winterised … closed the valve then filled fresh water tank 50% - that’s when I noticed we had probs
 
OP
OP
lamyj
Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Will give it a go tomorrow
Thanks to all for you replies 🙏🤞
 
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OP
lamyj
Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Andy1954 - thanks for the link - 🤞I won’t need one but if I do , will certainly check them out ..best price so far

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lamyj
Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Update : switched on pump started to quietly hum ( not like normal sound )
left it for few minutes .. had my head down looking and noticed a warmth- traced it to electric connector from pump - wires at connection felt warm .. so switched off pump. Assume pump struggling and knackered …
so looks like maybe new pump required …

Idiots guide please on how to replace water pump
took images of what it looks like inside and on top - tried to unscrew the blue ring - pipe on right side too short to allow any give to remove the unit
EB7D1567-302D-42DD-8769-9C37E563CB63.jpegE6BD3FAC-B546-4723-A578-640490B33F32.jpeg
Posted under Hymer group too - so apologises if you reading it twice
 
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OP
lamyj
Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Update: Followed Stealaway's advice -awkward little task but finally did it (not much room ) ..... Many Thanks
Then followed Lynnian's advice gave the impeller on the pump a tickle with a small screwdriver ... Many Thanks
Reconnected all - crossed fingers, flicked on main pump switch then turned kitchen tap on ...Hooray, water running .. slight splutter ! pump making a noise - switched on bathroom tap then shower --- all good. BUT .....................
now the pump keeps running
What have I done wrong ????
 
Mar 22, 2023
649
1,787
New Forest, United Kingdom
Funster No
94,759
MH
N+B Arto 74C
Exp
Since 2005
Brilliant that you have it running again, one of my Hymers worked on sensing the pressure drop in the water system and the other had little microswitches in the taps to turn the pump on.

So it would seem that something is turning the pump on.
 
OP
OP
lamyj
Feb 15, 2016
188
285
Lincoln
Funster No
41,684
MH
Hymer T class
Exp
2018
Will take a look tomorrow - need a glass of wine tonight :wine:
Thanks to all who sent advice ... least it's working - just too much :LOL::rolleyes:
 

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