Thetford 150 AES urgent problem

Discussion in 'Motorhome Chat' started by daveinspain, Jul 15, 2014.

  1. daveinspain

    daveinspain Funster

    Joined:
    Jun 23, 2011
    Messages:
    89
    Likes Received:
    53
    Location:
    Pedreguer, Spain
    Setting off from Spain to England tomorrow, turned fridge on, using electric hookup, 3 hours later fridge temperature has risen from 25C to 28C!:(

    Heat exchanger is hot, pipe to heat exchanger too hot to touch, so element is working.

    No error codes showing so thermostat is working OK (had 2 fail, so know what to look for).

    Tried switching to gas, same story - working flat out, temperature going up, not down.

    Tried different fridge thermometer, similar reading to 1st one.

    Fridge worked perfectly last time out.

    If the refrigerant gas had suddenly all leaked away, would the heat exchanger still get hot?

    Any advice gratefully received, obviously we can't set off until the problem is fixed!!:crying:

    Cheers, Dave
     
  2. daveinspain

    daveinspain Funster

    Joined:
    Jun 23, 2011
    Messages:
    89
    Likes Received:
    53
    Location:
    Pedreguer, Spain
    Oops, sorry, fridge is actually a Thetford N150 SES - can't find a way to edit original post!
     
  3. Barclaybasher

    Barclaybasher Funster

    Joined:
    Apr 13, 2012
    Messages:
    2,449
    Likes Received:
    7,110
    Location:
    Derby
    Can't help with the problem but could you buy a 12v cool box if you can't fix the fridge ? - not ideal but may get you home.
     
  4. Reallyretired

    Reallyretired Funster

    Joined:
    Apr 27, 2008
    Messages:
    5,706
    Likes Received:
    3,211
    Location:
    Eastbourne East Sussex
    are you level?
    it looks like your refrigerant isn't circulating.
    looks like a case for removing fridge and turning it upside down for a bit, not that easy though.
    a simpler alternative that might work is let it cool down, then take it for a run on hilly roads, then try it again making sure it is level both ways.
     
    • Like Like x 1
  5. daveinspain

    daveinspain Funster

    Joined:
    Jun 23, 2011
    Messages:
    89
    Likes Received:
    53
    Location:
    Pedreguer, Spain
    Thanks Burstner, but I am home, coming over to the UK for a couple of months. If the worst comes to the worst we'll have to use a coolbox to travel over, and get it fixed in the UK.

    Reallyretired, yes its level. I thought the turning upside down trick only worked on older fridges? It does look like the refrigerant isn't circulating though, but don't know why - it was working fine when we got home from Portgual a few weeks back. There is no smell of ammonia, so I doubt that its leaked away.
    Thanks for your reply, Dave
     
  6. daveinspain

    daveinspain Funster

    Joined:
    Jun 23, 2011
    Messages:
    89
    Likes Received:
    53
    Location:
    Pedreguer, Spain
    Reallyretired, tried your suggestion of letting it cool down, reversed the van down our steep drive, hitting the brakes occasionally to try and remove any airlocks, then reversed up the steep road outside, rolled forward hitting the brakes again, drove back up the drive on my level parking, started the fridge on gas, and I'm delighted to say the fridge is now starting to cool down! Obviously there must have been an airlock, and that shifted it. Well done, great suggestion!
    Many thanks, Dave
     
    • Like Like x 1
  7. John Laidler

    John Laidler Funster

    Joined:
    Jan 9, 2013
    Messages:
    8,582
    Likes Received:
    11,571
    Location:
    Plympton, Devon
    Indeed, great advice. Knowing not just that it needed to be hit but precisely how to hit it.
     
Loading...

Share This Page