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Freezer Temperature Problem Wayne Boatwright 07-04-2006
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Posted by Wayne Boatwright on July 4, 2006, 3:31 am
We have a Frigidaire 16 cubic foot frost-free upright freezer. Most of the
time it will maintain a -10°F. temperature. Periodically, perhaps every 6
months or so, the temperature rises to between 10-20° above 0°F. If I remove
the contents and allow the freezer to stand empty with the door open for 24
hours, when I power it up again, it will return to the -10°F. temperature and
maintain that again for at least 6 months.

Any ideas on what may be cause this?

TIA

--
Wayne Boatwright @¿@¬
_____________________

Real Goods Solar, Inc.
Posted by David Efflandt on July 4, 2006, 5:19 am
On 4 Jul 2006, Wayne Boatwright <wayneboatwright_at_gmail.com> wrote:
> We have a Frigidaire 16 cubic foot frost-free upright freezer. Most of the
> time it will maintain a -10°F. temperature. Periodically, perhaps every 6
> months or so, the temperature rises to between 10-20° above 0°F. If I remove
> the contents and allow the freezer to stand empty with the door open for 24
> hours, when I power it up again, it will return to the -10°F. temperature and
> maintain that again for at least 6 months.
>
> Any ideas on what may be cause this?

Frost-free means that it periodically heats up enough to thaw any ice off
of the cooling coils. Are you sure that you are not just sometimes
observing it during its self defrost cycle? Although, it could be that
the thermostat is getting frosted up or something if it is for a prolonged
period of time.

Posted by Wayne Boatwright on July 4, 2006, 5:03 pm
Oh pshaw, on Tue 04 Jul 2006 02:19:28a, David Efflandt meant to say...

> On 4 Jul 2006, Wayne Boatwright <wayneboatwright_at_gmail.com> wrote:
>> We have a Frigidaire 16 cubic foot frost-free upright freezer. Most of
>> the time it will maintain a -10°F. temperature. Periodically, perhaps
>> every 6 months or so, the temperature rises to between 10-20° above
>> 0°F. If I remove the contents and allow the freezer to stand empty
>> with the door open for 24 hours, when I power it up again, it will
>> return to the -10°F. temperature and maintain that again for at least 6
>> months.
>>
>> Any ideas on what may be cause this?
>
> Frost-free means that it periodically heats up enough to thaw any ice
> off of the cooling coils. Are you sure that you are not just sometimes
> observing it during its self defrost cycle? Although, it could be that
> the thermostat is getting frosted up or something if it is for a
> prolonged period of time.

I wish that was the problem. It's not the frost-free feature causing this.
I've checked the temperature regularly and it never goes lower than 10
degrees above zero when it's having this problem.

Perhaps the thermostat is the culprit.

--
Wayne Boatwright @¿@¬
_____________________

Posted by JimL on July 4, 2006, 7:27 am
On 4 Jul 2006 09:31:41 +0200, Wayne Boatwright
<wayneboatwright_at_gmail.com> wrote:

>We have a Frigidaire 16 cubic foot frost-free upright freezer. Most of the
>time it will maintain a -10°F. temperature. Periodically, perhaps every 6
>months or so, the temperature rises to between 10-20° above 0°F. If I remove
>the contents and allow the freezer to stand empty with the door open for 24
>hours, when I power it up again, it will return to the -10°F. temperature and
>maintain that again for at least 6 months.
>
>Any ideas on what may be cause this?
>TIA

The most likely cause is that you didn't shut the door properly the
day before the problem. Probably a plastic sack of frozen food was
sticking over the gasket or you crammed too much in and the door
didn't close all the way and that failure on your part let in heat and
moisture. That iced up your coils much more than your defrost cycle
could handle so from then on your coils never defrost. Eventually
there is complete obstruction by the ice.

Learn to clear your gasket area when you shut the fridge and all will
be well.



Posted by Wayne Boatwright on July 4, 2006, 5:06 pm
Oh pshaw, on Tue 04 Jul 2006 04:27:10a, JimL meant to say...

> On 4 Jul 2006 09:31:41 +0200, Wayne Boatwright
> <wayneboatwright_at_gmail.com> wrote:
>
>>We have a Frigidaire 16 cubic foot frost-free upright freezer. Most of
>>the time it will maintain a -10°F. temperature. Periodically, perhaps
>>every 6 months or so, the temperature rises to between 10-20° above 0°F.
>> If I remove the contents and allow the freezer to stand empty with the
>>door open for 24 hours, when I power it up again, it will return to the
>>-10°F. temperature and maintain that again for at least 6 months.
>>
>>Any ideas on what may be cause this?
>>TIA
>
> The most likely cause is that you didn't shut the door properly the
> day before the problem. Probably a plastic sack of frozen food was
> sticking over the gasket or you crammed too much in and the door
> didn't close all the way and that failure on your part let in heat and
> moisture. That iced up your coils much more than your defrost cycle
> could handle so from then on your coils never defrost. Eventually
> there is complete obstruction by the ice.
>
> Learn to clear your gasket area when you shut the fridge and all will
> be well.

I don't think this is the problem. I'm obsessive about making sure the
door is closed completely. In fact, when the door is first closed it's
almost as though the box is pulling a vacuum, as the door cannot be opened
at all for a few seconds.

I suppose it's possible that the coils are iced up, though I'm not sure
what caused it. That would seem logical, though, since giving the whole
unit a chance to stand open for 24 hours seems to correct the problem.

This has happened several times and always at about the 6th month mark.

--
Wayne Boatwright @¿@¬
_____________________

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