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  • FIRST POST
    • JuniorDesigner
    • By JuniorDesigner 17th Nov 10, 2:07 PM
    • 186Posts
    • 80Thanks
    JuniorDesigner
    Aqualisa Electric Shower Pressure Relief Device
    • #1
    • 17th Nov 10, 2:07 PM
    Aqualisa Electric Shower Pressure Relief Device 17th Nov 10 at 2:07 PM
    Hi there,

    I've recently moved into a flat and the shower we have installed is an Aqualisa Electric Shower, recently it has started to push water from the back of the unit as well as the shower head itself.

    I have been told by customer service that it's the pressure relief valve and that it can be "pushed back in place" to make it work again properly.

    Has anyone had the same problem and know how to fix it??

    Thanks in advance!
Page 1
  • rpurdon
    • #2
    • 31st Dec 10, 12:55 PM
    • #2
    • 31st Dec 10, 12:55 PM
    1. Turn off electrical supply to shower at the main fuse board.
    2. Unscrew the hose from the bottom of the shower unit.
    3. Remove the casing screws (2 on top of cover, 1 under the cover).
    4. Set the temperature control dial to the mid-blend position and remove, this will ensure ease of re-fitting the dial.
    5. Remove the front cover, by tilting the top of the cover towards you and sliding it downwards.
    6. On the left hand side you will see the white plastic outlet pipe. (This is where your hose screws onto).
    7. Using a crosshead (Phillips head) screwdriver- remove the small fixing screw that secures the outlet pipe to the black heater tank and twist the outlet pipe whilst pulling it gently down.
    8. Carefully remove the outlet pipe from the heater canister.
    9. Approximately 1 inch above the threaded end of the outlet pipe is a small tee-junction which should contain a small silicone ball, push the white cap covering this ball upwards with a screw driver to gain access to the ball.
    10. Using a blunt instrument (back end of a biro pen for example), push the silicone ball back into the housing until it locates firmly. (Note: the ball will not push all the way through into the outlet pipe).
    11. Re-fit the outlet pipe ensuring that the tee-junction is facing the wall and that the o-ring seals correctly into the heater canister.
    12. Re-fit the front cover, control dial and hose.
    13. Remove the shower head from the hose and point the open end into the shower tray or bath.
    14. Turn the shower unit on and ensure that water is not escaping from the PRD. If this is fine, reattach the shower head and test again.
    15. Re-instate the electrical supply.
  • Ellaroo
    • #3
    • 7th May 12, 8:01 PM
    • #3
    • 7th May 12, 8:01 PM
    Saved us buying a new shower today, thanks for your helpful post and easy instructions. This was exactly what was wrong with our shower and we fixed in within 5 minutes after reading your post. Many thanks.
  • wwmac
    • #4
    • 10th May 12, 11:33 PM
    • #4
    • 10th May 12, 11:33 PM
    Fantastic! Thanks for the great post with very helpful instruction - it has worked perfeclty and now my shower is back and running
  • Lwio
    • #5
    • 25th Oct 12, 1:13 PM
    • #5
    • 25th Oct 12, 1:13 PM
    Wow, Nice post. I thought I was into a new shower.
    One extra bit of advice, I replaced the worn out original hose with a cheaper one, that's what caused the problem in the first place, you need the proper specced hose.
    Thanks again.
  • dan sam
    • #6
    • 28th Oct 12, 3:27 PM
    • #6
    • 28th Oct 12, 3:27 PM
    1. Turn off electrical supply to shower at the main fuse board.
    2. Unscrew the hose from the bottom of the shower unit.
    3. Remove the casing screws (2 on top of cover, 1 under the cover).
    4. Set the temperature control dial to the mid-blend position and remove, this will ensure ease of re-fitting the dial.
    5. Remove the front cover, by tilting the top of the cover towards you and sliding it downwards.
    6. On the left hand side you will see the white plastic outlet pipe. (This is where your hose screws onto).
    7. Using a crosshead (Phillips head) screwdriver- remove the small fixing screw that secures the outlet pipe to the black heater tank and twist the outlet pipe whilst pulling it gently down.
    8. Carefully remove the outlet pipe from the heater canister.
    9. Approximately 1 inch above the threaded end of the outlet pipe is a small tee-junction which should contain a small silicone ball, push the white cap covering this ball upwards with a screw driver to gain access to the ball.
    10. Using a blunt instrument (back end of a biro pen for example), push the silicone ball back into the housing until it locates firmly. (Note: the ball will not push all the way through into the outlet pipe).
    11. Re-fit the outlet pipe ensuring that the tee-junction is facing the wall and that the o-ring seals correctly into the heater canister.
    12. Re-fit the front cover, control dial and hose.
    13. Remove the shower head from the hose and point the open end into the shower tray or bath.
    14. Turn the shower unit on and ensure that water is not escaping from the PRD. If this is fine, reattach the shower head and test again.
    15. Re-instate the electrical supply.
    Originally posted by rpurdon
    thankyou so much for this detailed how to fix the problem we had several over the phone conversations with plumbers re this we outlined the problem and they all sed new shower needed probably
    in the end we printed it off and got a local chap who foloowed the instructions to the letter and fixed the problem immedialtey he only charged us £20
    i didnt attempt the job myself but you saved us lots of money thankyou
    • southcoastrgi
    • By southcoastrgi 28th Oct 12, 3:52 PM
    • 4,964 Posts
    • 2,884 Thanks
    southcoastrgi
    • #7
    • 28th Oct 12, 3:52 PM
    • #7
    • 28th Oct 12, 3:52 PM
    thankyou so much for this detailed how to fix the problem we had several over the phone conversations with plumbers re this we outlined the problem and they all sed new shower needed probably
    in the end we printed it off and got a local chap who foloowed the instructions to the letter and fixed the problem immedialtey he only charged us £20
    i didnt attempt the job myself but you saved us lots of money thankyou
    Originally posted by dan sam
    very good price as the part prob cost him £12
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
  • tightwad1988
    • #8
    • 4th Jan 14, 9:20 PM
    • #8
    • 4th Jan 14, 9:20 PM
    Thank you so much rpurdon we have just fixed this exact problem, 2nd time this has happened since we bought the aqualisa 10 months ago & got it fixed under warranty but they advised me they wouldnt keep fixing it for us! bad design i say, as our water pressure isnt all that high.
    • southcoastrgi
    • By southcoastrgi 4th Jan 14, 9:34 PM
    • 4,964 Posts
    • 2,884 Thanks
    southcoastrgi
    • #9
    • 4th Jan 14, 9:34 PM
    • #9
    • 4th Jan 14, 9:34 PM
    it's not to do with the incoming water pressure it's normally a restriction in the outlet pipe or shower head, try dis-scaleing the showerhead, leave it overnight soaking in white vinegar
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
  • bebb88
    Thankyou very much for this instruction on the prd saved me a lot of money fantastic!
    • aaj123
    • By aaj123 29th Jun 14, 9:11 PM
    • 160 Posts
    • 23 Thanks
    aaj123
    1. Turn off electrical supply to shower at the main fuse board.
    2. Unscrew the hose from the bottom of the shower unit.
    3. Remove the casing screws (2 on top of cover, 1 under the cover).
    4. Set the temperature control dial to the mid-blend position and remove, this will ensure ease of re-fitting the dial.
    5. Remove the front cover, by tilting the top of the cover towards you and sliding it downwards.
    6. On the left hand side you will see the white plastic outlet pipe. (This is where your hose screws onto).
    7. Using a crosshead (Phillips head) screwdriver- remove the small fixing screw that secures the outlet pipe to the black heater tank and twist the outlet pipe whilst pulling it gently down.
    8. Carefully remove the outlet pipe from the heater canister.
    9. Approximately 1 inch above the threaded end of the outlet pipe is a small tee-junction which should contain a small silicone ball, push the white cap covering this ball upwards with a screw driver to gain access to the ball.
    10. Using a blunt instrument (back end of a biro pen for example), push the silicone ball back into the housing until it locates firmly. (Note: the ball will not push all the way through into the outlet pipe).
    11. Re-fit the outlet pipe ensuring that the tee-junction is facing the wall and that the o-ring seals correctly into the heater canister.
    12. Re-fit the front cover, control dial and hose.
    13. Remove the shower head from the hose and point the open end into the shower tray or bath.
    14. Turn the shower unit on and ensure that water is not escaping from the PRD. If this is fine, reattach the shower head and test again.
    15. Re-instate the electrical supply.
    Originally posted by rpurdon
    Fantastic instructions which worked like a charm for me! I had almost mentally prepared myself for a £230 fixed price repair by the Aqualisa engineer, but that was before I chanced upon these instructions and decided to give it a go myself. Took all of 20 minutes to fix the issue and really all it took was to follow these instructions to the letter!
  • andymed
    Genius... thanks for that... only problem was fitting the outlet pipe back in I pressed the solenoid piston in and promptly soaked myself! But very worth it for not having to buy a new shower! Thank you so much.
    • aaj123
    • By aaj123 25th Jan 15, 11:49 AM
    • 160 Posts
    • 23 Thanks
    aaj123
    As mentioned in my previous post on this thread, I know this is easy to fix but i am observing that my shower is developing this problem repeatedly and with greater frequency. Does this mean i need to buy a new pressure relief device?

    I found this part on ebay

    http://www.ebay.co.uk/itm/Aqualisa-435912-Quartz-Electric-Shower-Outlet-Pipe-PRD-pressure-relief-device-/161422779456?pt=UK_Home_Garden_Bathroom_Shower_Uni ts_PP&hash=item25958c2440
  • kdrover
    Worked Perfect
    I followed the instructions here and they worked absolutely perfectly. Major expense saved! Thanks
    • dround
    • By dround 8th Mar 16, 9:09 PM
    • 1 Posts
    • 0 Thanks
    dround
    new shower head
    Have followed this advice and while the hose was pointing down in the bath the leak stopped. When the shower head was back on it was worse than before. Interestingly it also happened with the shower head off but the hose lifted up to where it would normally sit. Prior to this leak the shower kept running cold but the engine would seem to shut down and restart. My thoughts were a safety feature kicking in.the shower was fine until I fitted a new shower head. I'm guessing I will need to get an official aqualisa shower head but reluctant to spend if it could be something else. Any thoughts?
    • lswainsbury
    • By lswainsbury 11th Oct 16, 11:54 AM
    • 10 Posts
    • 0 Thanks
    lswainsbury
    Just stumbled across this post....and glad I did. Saved me buying a new shower. Thanks, great help
    • weepig
    • By weepig 26th Nov 16, 11:09 AM
    • 1 Posts
    • 0 Thanks
    weepig
    Thanks!
    Didn't have a clue why water was pouring out the back of the shower. Found and followed your very clear instructions. Thank you!
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