Bluemanc100
Free Member
- Aug 13, 2019
- 445
- 2,459
- Funster No
- 63,227
- MH
- Elddis Majestic 155
- Exp
- MH Novice (but a seasoned veteran driver)
Hi folks,
I’ve googled this to death and can’t find any root cause on the motorhome.
The Whale pump (Blue with a White damper / picture below) under the bed pulses for a split second every few minutes. I’ve checked for leaks everywhere and can’t see any nor do I believe there is any air in the system. i’ve emptied some water so it isn’t over-filled.
Up in Scotland the issue didn’t appear but now we are in Wales it started doing it yesterday when we arrived and filled up. The pitch is slightly sloping but I’ve levelled so there should be no gravitational issue should there??
The weather is noticeably cooler here but we’ve been away in the van in the cold last year and nothing.
I can’t see any sort of pressure switch or pressure relief valve (Elddis 155) so I assume they are inside the pump. I cleaned the filter yesterday as there were lots of black plastic shavings in it which I assume would be from when the van was built??
I used a water tank cap with a Hoselok fitting for the first time in Scotland and really pressurised the tank as it didn’t vent off when full but we didn’t really have this issue after that event.
The only thing I haven’t checked (I could try today) is the electrical connection for the pump but there is no issue with the pump working when taps are opened so I don’t see how this can be the root cause.
Any tips before I consider changing the damper /
I’d appreciate it if anybody has some suggestions or thoughts?
I’ve googled this to death and can’t find any root cause on the motorhome.
The Whale pump (Blue with a White damper / picture below) under the bed pulses for a split second every few minutes. I’ve checked for leaks everywhere and can’t see any nor do I believe there is any air in the system. i’ve emptied some water so it isn’t over-filled.
Up in Scotland the issue didn’t appear but now we are in Wales it started doing it yesterday when we arrived and filled up. The pitch is slightly sloping but I’ve levelled so there should be no gravitational issue should there??
The weather is noticeably cooler here but we’ve been away in the van in the cold last year and nothing.
I can’t see any sort of pressure switch or pressure relief valve (Elddis 155) so I assume they are inside the pump. I cleaned the filter yesterday as there were lots of black plastic shavings in it which I assume would be from when the van was built??
I used a water tank cap with a Hoselok fitting for the first time in Scotland and really pressurised the tank as it didn’t vent off when full but we didn’t really have this issue after that event.
The only thing I haven’t checked (I could try today) is the electrical connection for the pump but there is no issue with the pump working when taps are opened so I don’t see how this can be the root cause.
Any tips before I consider changing the damper /
I’d appreciate it if anybody has some suggestions or thoughts?
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