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 Topic: Dometic fridge not working on gas
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05/6/2024 at 8:45pm
Location: Teesside
Outfit: Lunar Clubman SI H
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I've heard in the past that Dometic fridges can be a bit picky about the van being level when running off gas. It may be something as simple as that. Fingers crossed it is!
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Best Regards
David
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06/6/2024 at 12:34pm
Location: London
Outfit: Lunar Cosmos 524
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If it runs OK on other power sources, then that confirms the actual refrigeration 'plumbing' side works OK (it's common to all 3 power sources!).
A visible flame suggests the gas supply AND the flame out sensor are OK. It's not a huge roaring flame, it's only what many people refer to as a 'pilot' light flame! - really quite small, but should be perfectly formed and blue, not yellow in colour, and steady, not flickering greatly!
Next consideration is the Flue! The flame heat/fumes/exhaust MUST be able to travel up the flue to effectively heat the system properly. Flues get blocked with bugs, spider webs, and soot etc.! Worth investigating if the flue is clear, ensure flame is out and it has had time to cool down before investigating!
It's usually recommended that if run on gas, the flue should be 'de-sooted' several times a year!
The user manual usually has guidance on flue cleaning, otherwise plenty of info on internet on flue cleaning, so I'll start you here: https://www.practicalmotorhome.com/advice/how-to-service-your-motorhomes-fridge
One caveat! Most ageing fridge burner systems tend to be a bit rusty and brittle (partly the rust, partly the heat cycling changing the metal!), they need treating with care, and even then can fail if disturbed!
The point about fridge needing to be level is true. Absorption type (3 way) fridges need to be within about 5 degrees of level to operate well, the greater the angle the less well they operate until at a certain point they just don't work at all! As you've posted in MH & Campervan section, I take it that's what you've got, and my observation of such users is they are often not as particular about levelling as caravan owners are, often tolerating some 'crazy' angles! If set up at an angle, may be worth trying to level better and see if function returns. My experience with my caravan is that on soft ground, even if perfectly levelled on set up, it may sink and tilt a little over time, you may just have 'tilted' beyond the tolerance of the fridge!
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14/6/2024 at 4:11pm
Location: London
Outfit: Lunar Cosmos 524
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Quote: Originally posted by Jimbob686swift on 14/6/2024
Monty you are a gentleman
I finally have a cold fridge again !!!!
Can not thank you and everyone else trying to help me out enough 🙌
You are welcome, sad old world if you can't pass on a bit of acquired knowledge to benefit someone in need!
.... so which bit of wisdom did the trick? Was it a blocked flue, set up on the tilt, or sunk into too great a tilt?
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via mobile 05/6/2024 at 3:41pm
