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Fridges



 
 
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  #1 (permalink)  
Old May 6th 04, 08:06 PM posted to uk.rec.motorcaravans
[email protected]
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Posts: 2
Default Fridges

I wonder if anyone out there has attempted to service they're own 3-way
fridge. Mine works ok with 12V or 240V, but on gas it just seems to heat
up. The blue flame in the window was never very strong, but now it is
yellow and flickery. So it seems like a blocked flue, or blocked nozzle.

Are they hard to get at ? Does anyone have strong views against having a
go DIY ?

Thanks,

John Hanson


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  #2 (permalink)  
Old May 6th 04, 09:42 PM posted to uk.rec.motorcaravans
Kalvin
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Posts: 2
Default Fridges


"[email protected]" wrote in message
.. .
I wonder if anyone out there has attempted to service they're own 3-way
fridge. Mine works ok with 12V or 240V, but on gas it just seems to heat
up. The blue flame in the window was never very strong, but now it is
yellow and flickery. So it seems like a blocked flue, or blocked nozzle.

Are they hard to get at ? Does anyone have strong views against having a
go DIY ?

Thanks,

John Hanson


I do my own ( to skint too pay someone else!)
first make shore the flue is clear that is the easy bit (and usually the bit
that is wrong.
if that has not fixed prob. make sure there is fresh air getting in to the
burner.
then if all else fails u have to take it all apart clean it and put it back
not easy if you haven't done something similar before. if you are in doubt
take it to a professional & let him break it.
kal


  #3 (permalink)  
Old May 7th 04, 10:37 AM posted to uk.rec.motorcaravans
riccip
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Posts: 106
Default Fridges

"[email protected]" wrote:

I wonder if anyone out there has attempted to service they're own 3-way
fridge. Mine works ok with 12V or 240V, but on gas it just seems to heat
up. The blue flame in the window was never very strong, but now it is
yellow and flickery. So it seems like a blocked flue, or blocked nozzle.

Are they hard to get at ? Does anyone have strong views against having a
go DIY ?


Not at all. Some ppl will tell you you're mad and only let a
Corgi registered engineer etc etc blah blah. ********. If you
have average DIY skills and enough common sense to turn the gas
bottle off first then have a go.

The fridge will come out quite easily. If you can smell ammonia
strongly then the coolant has leaked and it's beyond repair.
Unlikely if it's working on 12V.

You should be able to see if there's anything blocking the flue.
There may be a baffle in there, a twisted metal plate hanging on
a wire. It helps prevent the pilot being blown out by a strong
gust of wind. Pull that out but put it back when finished. Clean
the flue using a stiff bottle brush. Next have a poke around the
jets (where the flame comes out) using a gas jet cleaner
available from camping shops - just a bit of wire really but it's
the right tool and cheap as chapatis.

Locate the thermocouple and give the "flame end" a clean. This is
the bit that keeps the pilot light going and it's the main
culprit if the flame regularly goes out. Unless you know it's
newish then it makes sense to replace this while you can,
especially if the fridge has had a fair bit of use. They're only
a few quid from your nearest camping/caravan store.
Finally turn the entire fridge upside down and leave it that way
for at least 24 hours. This will clear any possible airlocks in
the coolant pipes. If it works on 12V you probably won't have any
but it does no harm.

Refit the fridge and with luck she'll be cooler than an eskimo's
nostrils. If not then it may require the thermostat replacing
which is another simple DIY job. However the part's a bit pricey
so if the fridge is very old you may want to consider replacing
it instead.

riccip
  #4 (permalink)  
Old May 7th 04, 01:08 PM posted to uk.rec.motorcaravans
AC
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Posts: 83
Default Fridges

In article , riccip
writes
Finally turn the entire fridge upside down and leave it that way
for at least 24 hours. This will clear any possible airlocks in
the coolant pipes.


Interesting and useful post. But what does the air do after the fridge
has been upside down? What happens to the air - why does it not simply
go back to where it started the previous day?
--
AC
  #5 (permalink)  
Old May 7th 04, 06:10 PM posted to uk.rec.motorcaravans
riccip
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Posts: 106
Default Fridges

AC wrote:

Interesting and useful post. But what does the air do after the fridge
has been upside down? What happens to the air - why does it not simply
go back to where it started the previous day?


It's all coz of yer cystals mate, innit? Apparently ammonia
crystals form when the fridge gets hot and they build up over
time. Turning it upside causes them to be reabsorbed into the
liquid ammonia coolant. Don't be fooled if this sounds like I
know what I'm talking about. However it's a tried & tested old
trick that does work and has been known to resurrect many a
"scrap" fridge. Whenever fitting a new (or secondhand) fridge you
should also perform this task because it may have spent time on
it's side during storage/delivery.

riccip
  #6 (permalink)  
Old May 7th 04, 06:17 PM posted to uk.rec.motorcaravans
riccip
external usenet poster
 
Posts: 106
Default Fridges

riccip wrote:

Refit the fridge and with luck she'll be cooler than an eskimo's
nostrils. If not then it may require the thermostat replacing
which is another simple DIY job. However the part's a bit pricey
so if the fridge is very old you may want to consider replacing
it instead.


Correction here, I meant the gas control valve not the thermostat
(the thermostat only works on 240V).

riccip
  #7 (permalink)  
Old May 7th 04, 11:28 PM posted to uk.rec.motorcaravans
ROBIN DUMPLETON
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Posts: 210
Default Fridges

The gas control valves are actually very simple but the magnet gets weak and
they won't stay alight. You find this out after having changed the
thermocouple. The magnet portion of the valve which is 50% of the working
parts costs about 6, so if the valve is not seized or leaking it can be
refurbished cheaply enough.

Robin

"riccip" wrote in message
...
riccip wrote:

Refit the fridge and with luck she'll be cooler than an eskimo's
nostrils. If not then it may require the thermostat replacing
which is another simple DIY job. However the part's a bit pricey
so if the fridge is very old you may want to consider replacing
it instead.


Correction here, I meant the gas control valve not the thermostat
(the thermostat only works on 240V).

riccip



  #8 (permalink)  
Old May 7th 04, 11:31 PM posted to uk.rec.motorcaravans
ROBIN DUMPLETON
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Posts: 210
Default Fridges

Incidently for the replacement of Fridges it is well worth a day trip to
France 180 from the supermarket. Made by the French subsidiary of Dometic.

Robin

"riccip" wrote in message
...
riccip wrote:

Refit the fridge and with luck she'll be cooler than an eskimo's
nostrils. If not then it may require the thermostat replacing
which is another simple DIY job. However the part's a bit pricey
so if the fridge is very old you may want to consider replacing
it instead.


Correction here, I meant the gas control valve not the thermostat
(the thermostat only works on 240V).

riccip



  #9 (permalink)  
Old May 8th 04, 06:29 AM posted to uk.rec.motorcaravans
riccip
external usenet poster
 
Posts: 106
Default Fridges

"ROBIN DUMPLETON" wrote:

Incidently for the replacement of Fridges it is well worth a day trip to
France 180 from the supermarket. Made by the French subsidiary of Dometic.


That's handy to know Robin, ta. Which supermarket? Do they have
them in the Auchan?

Incidently check out the prices in the motoring section. There
are huge savings to be made on service parts (filters, glow
plugs, spark plugs, etc) and even better on branded Motor Oils
and new auto batteries. Always worth stocking up on these items
if there's any room left amongst all the beer, wine & frogs legs
in yer trolley.

Last time passing through Calais we decided to get a pair of new
van tyres fitted at that French tyre fitters on the way, thinking
that they've gotta be cheap. The bloke in reception couldn't have
been less interested. After 10 mins tapping away on the 'puter he
came up with a price of 180 Euros - each...!! With a quick gasp
and a "Baise-Moi" we legged it.

riccip
  #10 (permalink)  
Old May 8th 04, 06:45 AM posted to uk.rec.motorcaravans
riccip
external usenet poster
 
Posts: 106
Default Fridges

"ROBIN DUMPLETON" wrote:

The gas control valves are actually very simple but the magnet gets weak and
they won't stay alight. You find this out after having changed the
thermocouple. The magnet portion of the valve which is 50% of the working
parts costs about 6, so if the valve is not seized or leaking it can be
refurbished cheaply enough.


Thanks very much for that tip. I just remember pricing a full
Electrolux valve about 12 years ago and was quoted around a third
the price of a new fridge. Mind you it may have been an obsolete
part. The fridge was so old it had a "flint" mechanism to light
it.

riccip
 



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