Fridge exaughst stains

Jul 7, 2016
151
31
Brecon
Funster No
43,969
MH
hymer b584
Exp
Im a newgie
Hi all,
The above has been getting progressively worse, I removed the carbon deposit with white spirit but after a few days its starting back again and in a couple of weeks it will cover the size of a hand.
Does this indicate an issue with the jet, coked up exaughst etc. As it was not always a problem.
Any advise appreciated .
Steph
Photo attached...
 

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Feb 22, 2011
3,056
2,364
Newcastle under Lyme
Funster No
15,397
MH
Hymer B544 A Class
Exp
Since 2015 and in that time I have learnt an awful lot from this site
I think your fridge is burning dirty.
Get it serviced asap.
Have you got co alarm ? Fumes may be able to get in hab area ?
 
Reactions: GJH

Mr B

LIFE MEMBER
Feb 1, 2015
799
1,594
Yorkshire
Funster No
34,968
MH
Rapido 7065ff Design Edit
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Since 2015.......
Got to agree, service needed.
Blame it on the spiders web :eek:
 
Dec 21, 2011
3,411
2,812
London
Funster No
19,230
MH
IH PVC
Exp
Since 2012
I assume you are using gas and if so it needs a service ASAP. (y)
 

Badknee

LIFE MEMBER
Aug 25, 2014
5,344
42,597
notloB
Funster No
33,046
MH
Hobby 750 tag.
Exp
Full timing for five years and loving it!
If your up to it dismantle the burner and blow the jet through with compressed air. Get a vac handy and a long handled bottle brush and brush the flu out sucking the carbon out of the bottom with the vac.
Don’t put anything through the jet as it will damage it.
 
Aug 6, 2013
7,593
6,258
Kendal, Cumbria
Funster No
27,352
MH
A Class
Exp
since 1999
That stain is an indication of incomplete combustion of the gas. Apart from the carbon that causes the stain it's producing substantial quantities of CO. As others have said have it serviced or service it yourself - sooner rather than later.
 

TheBig1

LIFE MEMBER
Nov 27, 2011
11,531
14,498
Dorset
Funster No
19,048
MH
A class
Exp
many many years! since I was a kid
and white spirit will dissolve the wax on the side of your van so not a good idea
 
Jan 8, 2013
3,363
2,745
Dronfield - Derbyshire
Funster No
24,202
MH
Burstner Nexxo T660
Exp
7 Years
OP
stephsol
Jul 7, 2016
151
31
Brecon
Funster No
43,969
MH
hymer b584
Exp
Im a newgie
Thanks guys,
I'm away for another six weeks so will hole up somewhere and do it myself, made up a bottle brush out after an old coat hanger and a few bristles from a paint brush and have a new jet.
I've got a carbon monoxide alarm .
No vacuum so will bag the bottom of the exaughst above the burner that should catch the soot ok? I hope!
 
OP
stephsol
Jul 7, 2016
151
31
Brecon
Funster No
43,969
MH
hymer b584
Exp
Im a newgie
If white spirits can damage the paintwork, has anyone used an alternative ?
I've tried, surgical spirits, dishwash liquid and very fine cutting compound.?
All being well will tackle the job tomorrow
 

JeanLuc

Free Member
Nov 17, 2008
3,305
2,184
Warwickshire
Funster No
4,952
MH
Hymer B630 Star-Line
Exp
Since 2007
I assume it’s a Dometic absorption fridge. You may well know this but in case you don’t, there is a baffle that hangs by a wire in the upper part of the gas flue. Remember to remove it before shoving the bottle brush down the spout! The baffle is a short length of twisted metal sheet and its supporting wire hooks over the top of the flue pipe, under the angled section. Lift it out carefully.

Item H in the attached diagram.
 

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Last edited:
OP
stephsol
Jul 7, 2016
151
31
Brecon
Funster No
43,969
MH
hymer b584
Exp
Im a newgie
Great feedback guys, I've finished the job and thanks, I didn't know about the baffle, there was not a great deal of soot in the exaughst but I did get a little out. What I did find was the small holes in the burner were all blocked, so thanks Funflaire, hopefully that will do it.
I've cleaned the stain off with dishwasher the best I can and will monitor it for signs, thanks for ref to XSN theonlysue, that was helpful too.
Thank you all again,
Steph
 
Mar 12, 2018
67
50
Stoke on Trent
Funster No
52,786
MH
Elddis Autostratus CK2000
Exp
3 years on a STEEP learning curve
I don't move the van until I've serviced/ cleaned the burner unit on our fridge. Doesn't matter if I did it last week or last year. The van does not move until I know that the missus is safe. 7 minutes start to finish.
 
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