Problems with Dometic fridge

Discussion in 'Tech/Mech General' started by maison, Nov 12, 2014.

  1. maison

    maison Funster

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    :(While away last week we discovered that the fridge in our 2007 Swift Sundance was not working on gas.

    It has manual piezo ignition and when turning on the indicator needle moves into the green sector and heat can be felt from the gas exhaust outside the van, so the gas must be burning. However , there is no cooling effect at all, ( checked with thermometer in freezer compartment).

    On battery or mains it works fine.

    Any suggestions as to what is causing the problem and how it might be fixed would be appreciated.
     
  2. sedge

    sedge Funster

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    Does the chimney need sweeping? (I know, the correct name is the flue but it amounts to the same thing)

    Ours did exactly the same after about 6 months - it was well within original warranty from new - but it turns out was probably because when it was red hot, last summer when we used it A Lot and that after 3 months from new in Portugal that we'd turned it up too high for too long - they actually work better once they have got cold properly on medium at the most !

    Anyway, over 12 months use have passed since then and it's fine.

    Said she, just going to reach out for the pine dining table ........
     
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  3. jezport

    jezport Funster

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    It will need the jet cleaning or changing
     
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  4. funflair

    funflair Funster Life Member

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    I would say if you know what you are doing take the burner apart and clean it all including the flue, if you don't know what you are doing just get it serviced by somebody who does.
     
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  5. dave newell lvs

    dave newell lvs Trader-Vehicle Services

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    Dirty burner causing heavy sooting in the flue. Burners on Dometic fridges rarely need replacing, Thetford is a different story but the flue will need thorough cleaning with the burnwer removed to restore working order.

    D.
     
  6. trophychap

    trophychap Funster

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    Just to add to what Jenny (sedge) said earlier engineer told us we ought to have the flue cleaned every year, and perhaps sooner if using refillable gas (LPG) as it tends to burn dirtier.
     
  7. maison

    maison Funster

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    Thanks for the advice.

    It may be a stupid question but as the gas is definitely burning why is the fridge not cooling? I would have thought that a blocked flue would stop the gas burning.

    Sorry if the answer is obvious to you but I'm no expert!:doh:
     
  8. Sundowners

    Sundowners Funster Life Member

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    The 'fridge requires quite a strong flame to work----I would think it is too small and the jet needs cleaning out---it is really quite easy to do if you are at-all capable with simple tools
    If you take the jet out---don't drop it, they are usually very small
    Nigel
     
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  9. maison

    maison Funster

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    Are you aware of any video guides to the job? YouTube etc?

    I am reasonably "handy" but would appreciate some prior knowledge before having a go.
     
  10. dave newell lvs

    dave newell lvs Trader-Vehicle Services

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    The problem is the sooted flue. The soot acts as an insulator and prevents the heat of the flame from being absorbed into the cooling circuit. If you don't know how to service the gas side of a fridge then I strongly recommend you have it done professionally.

    D.
     
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  11. Bertie Bassett

    Bertie Bassett Read Only Funster

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    Seconded!(y)
     
  12. maison

    maison Funster

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    Thanks again. Will do as suggested and book it in for service
     
  13. maison

    maison Funster

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    Fridge sorted during habitation service.

    As suggested by members the cause was :-

    Blocked burner nozzle. New nozzle fitted and exhaust flue cleaned.
    OK now. All is well with the world!(y)
     
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