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Home > Archive > Home Repair forum > July 2005 > CAC compressor overheating?
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CAC compressor overheating?
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| Mikepier 2005-07-12, 12:25 pm |
| I just happen to be at the side of my house yesterday and I noticed on
my 19 year old Carrier unit the fan was running but not the compressor.
About 10 seconds later the compressor came on and ran continuosly with
no problem.
I have never seen this before.My house has been staying cool. The
system is properly charged. A friend told me the thermal overload on
the compressor could have caused it to go out. And he also suggested to
me to clean the coil with a water hose as the coils might be clogged
up, causing the compressor to overheat. Is there any other reason why
the compressor would cut out? And also is it a good idea to clean the
coil with a hose?
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| HeatMan 2005-07-12, 6:25 pm |
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"Mikepier" <mikepier@optonline.net> wrote in message
news:1121177040.127331.137890@o13g2000cwo.googlegroups.com...
quote:
> I just happen to be at the side of my house yesterday and I noticed on
> my 19 year old Carrier unit the fan was running but not the compressor.
> About 10 seconds later the compressor came on and ran continuosly with
> no problem.
> I have never seen this before.My house has been staying cool. The
> system is properly charged.
When was the last time the system was serviced?
quote:
> A friend told me the thermal overload on
> the compressor could have caused it to go out. And he also suggested to
> me to clean the coil with a water hose as the coils might be clogged
> up, causing the compressor to overheat. Is there any other reason why
> the compressor would cut out? And also is it a good idea to clean the
> coil with a hose?
>
It's a good idea to get the system serviced. And yes, you can clean the
coil with a hose, but be careful not to bend the fins or do it when the unit
if running.
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| Mikepier 2005-07-12, 6:25 pm |
| It was serviced a month ago. I did not notice the coils getting
flushed. But it was checked for freon with guages and it was good.
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| Big_Jake 2005-07-13, 4:25 am |
| Sounds like the compressor is going bad. Just changed out a VERY
similar unit on one of my rental properties. Call the company who
serviced it for their opinion, but it sounds like it is time to replace
it. The other important thing to note is that the efficiency standard
is going up as of January 1st, 2006. This means that you can still
replace the unit with a 10 SEER unit this year, but would need to go
with a 13 SEER (much more expensive) unit next year. Obviously, it
might make sense to go with the more efficient unit, this is just food
for thought.
JK
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| Steve@carolinabreezehvac.com 2005-07-16, 6:25 pm |
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"Mikepier" <mikepier@optonline.net> wrote in message
news:1121177040.127331.137890@o13g2000cwo.googlegroups.com...
quote:
> I just happen to be at the side of my house yesterday and I noticed on
> my 19 year old Carrier unit the fan was running but not the compressor.
> About 10 seconds later the compressor came on and ran continuosly with
> no problem.
> I have never seen this before.My house has been staying cool. The
> system is properly charged. A friend told me the thermal overload on
> the compressor could have caused it to go out. And he also suggested to
> me to clean the coil with a water hose as the coils might be clogged
> up, causing the compressor to overheat. Is there any other reason why
> the compressor would cut out? And also is it a good idea to clean the
> coil with a hose?
>
Cleaining with a hose may just impact more debris into the coil,
particularly since you state its 19 years old...sheesh man...its past its
life expectancy..things that are not serviced regularly break...and things
that are run past their normal life span will fail.
The compressor does have a thermal overlimit switch in it, but that unit
might also have a low pressure switch, or a high pressure cut out switch
that COULD remove the compressor from the line and allow the fan to run.
Suggest that this is NOT a DIY repair, and that if you are worried about it,
to call in a licenced pro.
A proper coil clean will involve a foaming cleaner that in most states, the
un-licenced can not buy direct.
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