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Blower Coil Freeze After Compressor Replacement?

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Blower Coil Freeze After Compressor Replacement? Jim Conway 06-18-2008
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Posted by Jim Conway on June 18, 2008, 12:15 pm
Hi,
My in-laws had an exterior AC compressor replaced (by an HD sub-
contractor FWIW...) which worked for a few days, and then ceased
working when a coil leak froze up at the blower (as diagnosed by the
same HD sub-contractor who they called back). He explained that the
problem at the blower was pre-existing, and had nothing to do with
his
original compressor replacement. He's attempting to locate a
replacement coil for the single defective coil, but estimated
replacing all coils which could be necessary if he can't find a
single
coil and could cost upwards of $2K. After they just spent $3k having
compressor replaced.

At the same time the new unit crapped out, they also developed a
thermostat problem at a second unit they have in their attic. That
problem has already been fixed by the same tech. Each unit is
controlled by its own thermostat, but I'm not sure if both systems
could somehow tie together....


I find the timing of both problems suspect (though not unlikely), and
am wondering if they are being sold a bill of goods. Feedback
appreciated!



Posted by Noon-Air on June 18, 2008, 1:28 pm

> Hi,
> My in-laws had an exterior AC compressor replaced (by an HD sub-
> contractor FWIW...) which worked for a few days, and then ceased
> working when a coil leak froze up at the blower (as diagnosed by the
> same HD sub-contractor who they called back). He explained that the
> problem at the blower was pre-existing, and had nothing to do with
> his
> original compressor replacement. He's attempting to locate a
> replacement coil for the single defective coil, but estimated
> replacing all coils which could be necessary if he can't find a
> single
> coil and could cost upwards of $2K. After they just spent $3k having
> compressor replaced.

So he didn't properly diagnose the system. Thats gotta suck to have to pay
for a noobs training

> At the same time the new unit crapped out, they also developed a
> thermostat problem at a second unit they have in their attic. That
> problem has already been fixed by the same tech. Each unit is
> controlled by its own thermostat, but I'm not sure if both systems
> could somehow tie together....
>
>
> I find the timing of both problems suspect (though not unlikely), and
> am wondering if they are being sold a bill of goods. Feedback
> appreciated!

yes

Maybe its time to call somebody who knows WTF they are doing.


Posted by on June 18, 2008, 2:29 pm
wrote:

>
>> Hi,
>> My in-laws had an exterior AC compressor replaced (by an HD sub-
>> contractor FWIW...) which worked for a few days, and then ceased
>> working when a coil leak froze up at the blower (as diagnosed by the
>> same HD sub-contractor who they called back). He explained that the
>> problem at the blower was pre-existing, and had nothing to do with
>> his
>> original compressor replacement. He's attempting to locate a
>> replacement coil for the single defective coil, but estimated
>> replacing all coils which could be necessary if he can't find a
>> single
>> coil and could cost upwards of $2K. After they just spent $3k having
>> compressor replaced.
>
>So he didn't properly diagnose the system. Thats gotta suck to have to pay
>for a noobs training

        On the one hand, a dead compressor makes other things hard to
diganose.

        On the other hand, he certainly should have at least checked
static pressures, and if the system was flat, threw a test charge in
to find the leak ( and thus the bad coil ), etc, and discussed with
the owner the TOTAL cost of repair, as compared to the cost of
replacing the system ( with everything 100 % new and under warranty ).

        These days, a resi compressor change isn't going to make much
sense in probably most cases, on a cost basis.

>
>> At the same time the new unit crapped out, they also developed a
>> thermostat problem at a second unit they have in their attic. That
>> problem has already been fixed by the same tech. Each unit is
>> controlled by its own thermostat, but I'm not sure if both systems
>> could somehow tie together....
>>
>>
>> I find the timing of both problems suspect (though not unlikely), and
>> am wondering if they are being sold a bill of goods. Feedback
>> appreciated!
>
>yes
>
>Maybe its time to call somebody who knows WTF they are doing.

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Posted by KJPRO on June 18, 2008, 4:34 pm

> wrote:
>
>>
>>> Hi,
>>> My in-laws had an exterior AC compressor replaced (by an HD sub-
>>> contractor FWIW...) which worked for a few days, and then ceased
>>> working when a coil leak froze up at the blower (as diagnosed by the
>>> same HD sub-contractor who they called back). He explained that the
>>> problem at the blower was pre-existing, and had nothing to do with
>>> his
>>> original compressor replacement. He's attempting to locate a
>>> replacement coil for the single defective coil, but estimated
>>> replacing all coils which could be necessary if he can't find a
>>> single
>>> coil and could cost upwards of $2K. After they just spent $3k having
>>> compressor replaced.
>>
>>So he didn't properly diagnose the system. Thats gotta suck to have to pay
>>for a noobs training
>
> On the one hand, a dead compressor makes other things hard to
> diganose.


True, but the retard should have known there was a problem after the
replacement.

Either the system didn't evacuate properly, the evap is dirty, etc, etc....
the problem was there *before* he left the premises!



Posted by Don Ocean on June 18, 2008, 11:45 pm
KJPRO wrote:
>> wrote:
>>
>>>> Hi,
>>>> My in-laws had an exterior AC compressor replaced (by an HD sub-
>>>> contractor FWIW...) which worked for a few days, and then ceased
>>>> working when a coil leak froze up at the blower (as diagnosed by the
>>>> same HD sub-contractor who they called back). He explained that the
>>>> problem at the blower was pre-existing, and had nothing to do with
>>>> his
>>>> original compressor replacement. He's attempting to locate a
>>>> replacement coil for the single defective coil, but estimated
>>>> replacing all coils which could be necessary if he can't find a
>>>> single
>>>> coil and could cost upwards of $2K. After they just spent $3k having
>>>> compressor replaced.
>>> So he didn't properly diagnose the system. Thats gotta suck to have to pay
>>> for a noobs training
>> On the one hand, a dead compressor makes other things hard to
>> diganose.
>
>
> True, but the retard should have known there was a problem after the
> replacement.
>
> Either the system didn't evacuate properly, the evap is dirty, etc, etc....
> the problem was there *before* he left the premises!

Why are we second guessing this contractor. And we have only one side of
the story in which to judge. I would think it prudent for the customers
to check our the contractors background and reputation. Go from there.
Such as getting a second opinion from a reliable second contractor.
Is it possible that they went with the cheapest bid? Thus got the
cheapest results.
>
>

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