Alde pump

Discussion in 'Motorhome Chat' started by Kevinthecat, Dec 5, 2015.

  1. Kevinthecat

    Kevinthecat Funster

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    Just some advice needed.
    Picked up the van today following the Worksop having it for 3 weeks . The Alde pump was replaced and tonight after driving 3 hours we booked on a site and set the heating. Unfortunately, the heating is not working , the boiler is heating up but the pump is not working. It may be something that I'm not doing but I've looked at everything . I can't contact the Worksop until Monday .
    Any suggestions gratefully received .
     
  2. pappajohn

    pappajohn Funster Life Member

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    Depends on the model but have you turned up the room thermostat.

    On mine, a 3030 model, the stat controls the pump not the boiler.
    The boiler has its own internal stat.
    Also, you have turned the control to hot water AND heating ?
    Hot water only will not turn on the pump.
     
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  3. Kevinthecat

    Kevinthecat Funster

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    Thx for your reply Pappa John ours is a 3032 , we have the room thermo up high . We only want heating not hot water but have both pressed on both.
    We had a new pump fitted due to the last one being noisy . The old system was only 9 months old.
     
  4. pappajohn

    pappajohn Funster Life Member

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    If your pump is like mine it is a small motor with a long impellor shaft going into the header tank.

    If so, remove the pump completely from the tank then turn it on.
    If it spins you have an air lock in the system stopping the circulation.

    If it is airlocked it can take an hour or more to sort it as the front then rear of the van need to be raised as high as possible to help the air find its way out.

    I have just done this on my caravan....lower the nose as far as possible until the A frame was resting on the ground then run the heating while opening the bleed screws.
    Raise the front using a high lift farm jack....back of van on the ground, A frame around 4ft off the ground then do the bleed valves again.
    Obviously with a motorhome you need a steep incline....or the genuine alde filling/bleeding tool

    A couple of up and down cycles got the system working again.
     
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  5. DavidG58

    DavidG58 Funster

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    on ours we have a symbol to show the pump is running, top row far right, a ring of arrows I think

    you really would like to think they tried it before sending you away!

    might be worth just turning the stat down and back up again, see if the pump symbol goes off and back on (presuming you have one), one thing I have noticed is Alde change there controllers more often than we change our bedding, don't think I have seen 2 the same yet

    I feel for you, nothing worse than having something that wasn't quite broken fixed and it coming back worse :(
     
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  6. pappajohn

    pappajohn Funster Life Member

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    You can have hot water only but not heating only.....its a common burner with two concentric water jackets....ie, one inside the other, and the heating jacket is the inner and relies on heat transfer from it to the hot water jacket to heat up tap water.
    This allows the heating to work even if the hot water jacket is drained down.

    Its the pump which determines if heating is on or not by stopping/starting the already heated water circulating.
     
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  7. SteveandDenise

    SteveandDenise Funster

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    on ours the pump needs to be set to thermal rarther than continuious for the stat to control it this is done in the menu on the touch screen.
     
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  8. pappajohn

    pappajohn Funster Life Member

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    Mine is a far older system with a manual 4 switch control panel

    Alde dont make it easy using so many different panels thats for sure.

    Oh, and mine is a 3020 compact model.
     
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  9. pops

    pops Funster

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    Check your day and night settings are turned off. If you go to alde heating 3020 it shows you how to work your control panel.
     
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  10. Kevinthecat

    Kevinthecat Funster

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    Might be a daft question , we only want the heating on not hot water would it affect things if we have no water in the fresh water tank? I didn't think it mattered if it was full or empty .
     
  11. DavidG58

    DavidG58 Funster

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    as PPJ has said above you cant have heating without hot water

    I would have thought the Alde controller would be flashing an error for no water though if that was the issue
     
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  12. Late Starting

    Late Starting Funster

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    It will run without water in the hot water system But it is NOT ADVISABLE to then fill the water system while the boiler is hot as you will hear the boiler protest as the cold water hits it as it fills.
    Best of luck Cliff
     
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  13. pops

    pops Funster

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    I have heard that the some systems fitted will not work if your fresh water tank is empty. Why this is done I do not know but it is worth putting some water in to try.
     
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  14. Chipster

    Chipster Funster Life Member

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  15. Kevinthecat

    Kevinthecat Funster

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    Thank you for all your replies.
    Heating still not working , I've filled the water tank up.
    I have emailed Alde and will contact the workshop tomorrow for a chat!
    As side note London to Cheshire to collect a van which I was informed twice the boiler was working and then to find it doesn't . I hope it is operator error if not firm words.
    Once again thanks for your advice .
     
  16. pops

    pops Funster

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    Good morning @Kevinthecat. Have you had any luck with your heating. Have you checked the pump connection to make sure you have a good contact.
     
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  17. Kevinthecat

    Kevinthecat Funster

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    Morning
     
  18. DavidG58

    DavidG58 Funster

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    And I don't suppose you chose to stay over in Cheshire, if you have half my luck you would be back near home again, heres hoping its something you haven't spotted yet, glad it had been mildish outside

    BTW the hob makes a good short term heater, as does running the engine, hope it gets sorted tomorrow at latest :)
     
    Last edited: Dec 6, 2015
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  19. Violet1

    Violet1

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    On ours we have a frost control dump valve, this opens below five degrees if not in use, would be worth checking to make sure closed
     
  20. pappajohn

    pappajohn Funster Life Member

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    As pops said, check the electrical connectors on wthe pump.
    Mine were mini spade crimps, one of which wasnt tight causing intermittent operation due to the vibration of the pump when running.
    If you have a multimeter check there is 12v at the pump.
     
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