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Fridge thermostat adjustment

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Paul D Smith

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May 24, 2011, 7:46:55 AM5/24/11
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Servis fridge. Always very cold and compressor on. Replaced thermostat,
same results!

There are two adjustments screws, a small brass one apparently moving
contacts and a larger screw working against a spring. Having fiddled with
these the fridge is better, but how do I adjust this properly?

Thanks,
Paul DS

harry

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May 24, 2011, 1:16:01 PM5/24/11
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One screw will be for the temp setting, the other to vary the
differential (or hysteresis) between switch on/switch off. (Ie to stop
it coming on and off too frequently)

Some fridge compressors don't like being started until the gas
pressures have equalised, so the differential needs to take this into
account.

Paul D Smith

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May 25, 2011, 3:15:03 AM5/25/11
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"harry" <harol...@aol.com> wrote in message
news:1762d953-c811-4a39...@gv8g2000vbb.googlegroups.com...

Thanks Harry - I believe the brass screw is the temp, and the one working
against the spring is the hysteresis. I'm guessing that tightening against
the spring increases the hysteresis - we'll see ;-).

Paul DS.

Mr Pounder

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May 25, 2011, 1:02:24 PM5/25/11
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"Paul D Smith" <paul_d...@hotmail.com> wrote in message
news:iria9q$3tp$1...@dont-email.me...

Stats come preset, you really should not have to take them apart.
I trust the OP has secured the end of the capillary tube to the evaporator
plate?
>
>


harry

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May 25, 2011, 2:21:52 PM5/25/11
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On May 25, 6:02 pm, "Mr Pounder" <MrPoun...@RationalThought.com>
wrote:
> "Paul D Smith" <paul_d_sm...@hotmail.com> wrote in messagenews:iria9q$3tp$1...@dont-email.me...
>
>
>
>
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> > "harry" <haroldhr...@aol.com> wrote in message
> - Hide quoted text -
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> - Show quoted text -- Hide quoted text -
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True. But if it's not working one has to mess about. Usually they
have lost gas & any adjustment doesn't last. Bloody expensive they are
too.

harry

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May 25, 2011, 2:26:44 PM5/25/11
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On May 25, 8:15 am, "Paul D Smith" <paul_d_sm...@hotmail.com> wrote:
> "harry" <haroldhr...@aol.com> wrote in message
> Paul DS.- Hide quoted text -

>
> - Show quoted text -

There are different ones for different numbers of "star" fridges/
freezers.
There are several gases which evaporate at different temperatures
too. All effects the setting of the stat.

Mr Pounder

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May 25, 2011, 3:22:39 PM5/25/11
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"harry" <harol...@aol.com> wrote in message
news:ed7f89bf-fc84-4540...@k17g2000vbn.googlegroups.com...

One should not have to mess about with a thermostat in a domestic unit. What
you are doing is very unusual.
I strongly suspect the stat is not the problem.
Trade a stat is a fiver and they do not lose vapour unless damaged.
How old is your fridge?
Is it a fridge or a fridge freezer.


Tabby

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May 25, 2011, 8:32:11 PM5/25/11
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On May 25, 8:22 pm, "Mr Pounder" <MrPoun...@RationalThought.com>
wrote:

At teh end of the day, if you're getting the right temp in the fridge
and the compressor isnt trying multiple timse to start, I shouldnt
worry.


NT

Paul D Smith

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May 26, 2011, 3:32:49 AM5/26/11
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> Stats come preset, you really should not have to take them apart.
> I trust the OP has secured the end of the capillary tube to the evaporator
> plate?

Who said I took it apart :-) ? On this model of servis fridge, the
capillary is slid into a tube which descends into the bowls of the
fridge/freezer, never to be seen again. The old one slid out easily and
there was no hint of any clip etc.

As to the thermostat itself, it has some slots around the edges which is how
I can see the spring and both screws are exposed, presumably for adjustment.

Paul DS

Mr Pounder

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May 26, 2011, 11:29:53 AM5/26/11
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"Paul D Smith" <paul_d...@hotmail.com> wrote in message
news:irkvn3$6e2$1...@dont-email.me...

Fixed it then have you?
Hmmm?

>
>


ric...@newdirection.org.uk

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Jul 28, 2016, 9:37:36 AM7/28/16
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I am adjusting a thermostat in a lada fridge there are 3 screws
1 contact spacing I think is hysteresis and temp
2 coil spring i think is course temp
3 leaf spring is fine temp
I am not a refrigeration engineer but manage to repair most things.

The Other John

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Jul 28, 2016, 10:22:52 AM7/28/16
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On Thu, 28 Jul 2016 06:37:34 -0700, richard wrote:

> I am not a refrigeration engineer but manage to repair most things.

Could you have a go at your comma key, it doesn't seem to be working! :)

--
TOJ.

Brian Gaff

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Jul 28, 2016, 4:59:38 PM7/28/16
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Back in time again then...
2011.
Brian

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This newsgroup posting comes to you directly from...
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Blind user, so no pictures please!
<ric...@newdirection.org.uk> wrote in message
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Johnny B Good

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Jul 28, 2016, 5:59:17 PM7/28/16
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Not only that but his full stop key is similarly broken (and there seems
to be an intermittent problem with his shift key too). :-)

--
Johnny B Good

Johnny B Good

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Jul 28, 2016, 10:34:49 PM7/28/16
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But, as Brian observed, he's probably got those problems well sorted out
by now (some five and a bit years later). Never mind eh? Better late than
never I suppose. :-)

--
Johnny B Good

David

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Jul 29, 2016, 10:41:03 AM7/29/16
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On Thu, 28 Jul 2016 06:37:34 -0700, richard wrote:

Just checking - is a Lada fridge a cheap copy of an old Fiat fridge and
made in Russia?



--
Windows 8.1 on PCSpecialist box

Graham.

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Jul 29, 2016, 2:05:35 PM7/29/16
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I think he is asking about the heater in his Soviet era car. (BICBW)



--

Graham.

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