Hymer B564 fridge.

Discussion in 'Hymer' started by Periscope, Jul 15, 2016.

  1. Periscope

    Periscope Funster

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    Had a fantastic week away, only marred by an aforementioned leak AND our fridge refused to ignite on gas. The day before it packed up we were aware of it being very fumey from the exhaust and a black stain had to be wiped off from the exterior wall above the exhaust vent. Next time we tried to ignite it, no dice. The ignition button/switch is clicking away like a goodun but it refuses to light.

    Any ideas welcome.
     
  2. Flamenca

    Flamenca Funster Life Member

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    The burner jet sometimes gets blocked. It is accesses by removing the lower external vent. I don't like the sound of the 'black stain'. Maybe time to clean the flue. Unfortunately, I do not know of an easy way to do this. Others might come along with a solution.
     
  3. Periscope

    Periscope Funster

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    That seemed to be what someone else suggested. They reckoned a possible cure would be a compressor and airline.......but where to point it?????
     
  4. Flamenca

    Flamenca Funster Life Member

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    The exterior flue terminal can be removed. If you do intend to blow compressed air down the flue I would definitely remove the burner assemble (not too difficult) and if possible put a length of vacuum cleaner hose over the bottom of the flue.
     
  5. Periscope

    Periscope Funster

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    IMG_20160715_180329.jpg That sounds like good advice :)

    Not quite sure where I'm looking for for the burner assembly. I can guess but perhaps tell me where to start? It wouldn't be the first time I've taken the lid off of something and springs fly in all directions!
     
  6. Xabia

    Xabia Funster

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    If you take out the screw in your picture the cover plate over the burner assembly can be removed. When I cleaned my flue I just covered the burner jet with a piece of cloth, the soot falls on that and you can fold it to remove the cloth preventing any contamination.

    Don't know if the system is the same on your flue but mine has a twisted piece of metal hanging from the top of the flue, I took it off its hook and shook it around the flue which removed lots of soot, no problems since.
     
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  7. Periscope

    Periscope Funster

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    That sounds good. Will get on the case.

    Might take some photos as I do it. It might help others to not make the same cock ups I may make! :)
     
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  8. Periscope

    Periscope Funster

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    There are in fact two screws holding the plate. One at the front and ........ you guessed it!
    That allows the cover plate to be removed from the left.

    The box is a little tricky to get off. It's held by a tang on the right hand side. Slide the box to the left and then IMG_20160715_183355.jpg IMG_20160715_183432.jpg IMG_20160715_183528.jpg pull the left hand side towards you to remove it. It needed a little wiggle.

    Voila! The burner exposed (I think that's what it is!).
    There was a fair bit of soot in there without me getting an airline on it so I think we may be on to a winner. Round to my muckers place tomorrow, to use his. :)
     
  9. JeanLuc

    JeanLuc Funster

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    It looks as though the condensation tub is split too. That's the plastic pot that clips over the horizontal pipe and enables the condensate to be evaporated. The fact that the pipe is rusty suggests the tub is leaking. I effected a temporary repair with Sikaflex and I have still to buy a new tub! I rubbed down the tube and repainted it with Hammerite.
     
  10. Periscope

    Periscope Funster

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    Good shout. I'll take a look at that.
     
  11. Flamenca

    Flamenca Funster Life Member

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    That's interesting. Mine does not have a 'tub'. The condensate tube runs directly through the floor to discharge on the ground. Maybe a modification by the previous owner?
     
  12. Hymie

    Hymie Funster

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    I will know in a short while what condition my burner set up is in, it won't work on gas at the moment, fingers crossed it's just the jet/flue problem and nothing more expensive.
     
  13. Flamenca

    Flamenca Funster Life Member

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    If cleaning those does not help and assuming your gas pressure is OK then the problem might be the gas 'tap' which I have been told has a mesh strainer on the inlet. The hob has to be removed to gain access :(
     
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  14. Hymie

    Hymie Funster

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    Ooooooh, thanks Flamenca, something else to possibly look forward to.

    You have to either love this life or have pockets full of folding stuff to survive.
    :rofl:

    Gas pressure is fine, Hobson and boiler have no probs so will bear that in mind if cleaning the jet/flue doesn't work.

    Thanks for the advice.
     
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  15. Flamenca

    Flamenca Funster Life Member

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    @Hymie I have just spoken to a guy who has experience and qualifications for gas work on motorhomes and he reckons it is unlikely to be the gas valve clogged. However, he has found that the gas pipe between the gas valve and the burner rusts on the inside and the flakes of rust cause a blockage. The bad news is that to remove this pipe it is still necessary to remove the hob/sink unit.
     
  16. Periscope

    Periscope Funster

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    Gave it a blow yesterday and gently poked around with a bit of wire and she started. Two hours later, nuffink!
     
  17. Flamenca

    Flamenca Funster Life Member

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    Have you removed the burner and cleaned the jet?
     
  18. Periscope

    Periscope Funster

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    Gave it a good blast with a mate's airline (while wearing precautionary face mask, goggles and wetsuit). Also poked it up the flue and promptly gave the kids a passable impression of Thomas the tank engine.

    Started up first time.
     
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  19. Manic

    Manic Funster

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    I've not read the whole post but have you took the pipe off the jet block, as that's where the jet is. It's just a pressed metal top hat shape that's held in place my the end of the pipe. I did mine a few weeks ago and it was full of rubbish and it then took several days for the freezer to get down to temperature, as the fridge was then full of warm stuff, we even bought a bag of ice to help it, seems ok now.
     
  20. Flamenca

    Flamenca Funster Life Member

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    Did you just push the airline up the flue or also pushed it down from the top?

    A video clip of the procedure would be great to give us all a laugh :LOL:
     
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