This question is regarding Aqualisa Aquastream - Thermostatic & Manual (post 1997) - Shower Spares

The aquastream pump runs but no water is pumped until I take the showerhead off the wall and lower into the bath.

There are no discernable leak at the shower, could there be any other reason for this ?



Previous Q & A



I have an aqualisa aquastream post 1997,



The pump runs but no water is pumped until I take the showerhead off the wall and lower into the bath.



Howvere, the water continues to flow then when I return the showerhead to the wall bracket.



Is there an air lock , or is there a water pressure switch not opening to prime the pump, the priming has to be done manually by letting the water flow by gravity.



Thanks for any help Submit an answer

Submitted 2 days ago | by Phil, Birmingham

A: The water pressure from the tanks should keep the water in the pump area of the shower.

You may have a leak around the cartridge or coming into the shower which would need fixed.
Asked 11 years ago by Anonymous

Perhaps I am a little confused here but as I understand the problem ......

 

When you turn the shower on the pump starts running but you have no water, then if you lower the shower head into the bath the water comes through you return the head to the bracket and the shower works perfectly!?

If this is the case then you may have an installation fault see drawing page 6 of link below

http://www.aqualisa.co.uk/upload/INSTALLATION%20GUIDES/Install_Aquastrm.pdf

 

Although no measurements are given the shower head should ideally at least 150mm below the cistern and/or the unit 300mm below the base of the cold water cistern.

This is a fairly common installation fault and as long as you don’t allow the pump to run with no water coming through then it should not be a problem other than the inconvenience

If this has only just started happening then it is possible that you may have a faulty cartridge

 

Answered 11 years ago by The Shower Doctor

Have got the answer from Aqualisa:

This is due to blocked air.

1) with the pump off, unscrew the shower head and place hose in bath.

2) position temp control to cold.

3) turn on pump and wait for any burbling and blowing of air to be flused through.

4) Slowly increase the temperature at each small step wait for burbling air to disipate.

5) finally turn temp to max and allow water to flow.

6) reduce temp to normal and switch pump off.

7) replace shower head.

8) test by switching pump on , water should pump , if it doesnt.

9) reduce the temperature and increase the flow.

10) do this until a steady flow results at all temperatures

Answered 11 years ago by Anonymous

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