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Heat pump making a clicking noise

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Heat pump making a clicking noise Carpenter 02-13-2008
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Posted by Carpenter on February 13, 2008, 10:21 pm
The heat pump in my old electric Kenmore HVAC system is making a
loud clicking
noise. I can year it from a room on the second floor. I peeked inside
and there nothing hitting the blades of the fan. The noise reminds me
of a piezoelectric lighter for a gas stove

Does anyone know what could be wrong? Performance doesn't seem
affected for now and it happens while heating. Too cold to try cooling
for now.

Suggestions and advice appreciated.

Thank you

Posted by Mo Hoaner on February 13, 2008, 10:44 pm

> The heat pump in my old electric Kenmore HVAC system is making a
> loud clicking
> noise. I can year it from a room on the second floor. I peeked inside
> and there nothing hitting the blades of the fan. The noise reminds me
> of a piezoelectric lighter for a gas stove
>
> Does anyone know what could be wrong? Performance doesn't seem
> affected for now and it happens while heating. Too cold to try cooling
> for now.
>
> Suggestions and advice appreciated.
>
> Thank you

How were you able to determine that it was the heat pump in the system that
was making the clicking noise? There are many different parts in old
electric Kenmore HVAC systems that could be making the noise you describe.
One common source is the reversal commutation interface relay. How long has
it been making this noise? What kind of thermostat are you using to control
this system? Is it functioning normally, otherwise?



Posted by Carpenter on February 13, 2008, 11:15 pm
>
>
> > The heat pump in my old electric Kenmore HVAC system is making a
> > loud clicking
> > noise. I can year it from a room on the second floor. I peeked inside
> > and there nothing hitting the blades of the fan. The noise reminds me
> > of a piezoelectric lighter for a gas stove
>
> > Does anyone know what could be wrong? Performance doesn't seem
> > affected for now and it happens while heating. Too cold to try cooling
> > for now.
>
> > Suggestions and advice appreciated.
>
> > Thank you
>
> How were you able to determine that it was the heat pump in the system that
> was making the clicking noise? There are many different parts in old
> electric Kenmore HVAC systems that could be making the noise you describe.
> One common source is the reversal commutation interface relay. How long has
> it been making this noise? What kind of thermostat are you using to control
> this system? Is it functioning normally, otherwise?

The noise is louder when I stand outside close to the heat pump,
seems to come from a box on the side of the outside chassis.

Funny you asked about the thermostat, in November I replaced the old
mercury based mechanical one with a programmable Hunter. My electric
bill has been much lower since then.

The clicking doesn't happen all the time, but the system is
functioning regardless..


Posted by on February 16, 2008, 6:53 pm
I know this does not help. It can be any number of things. It can be
as simple as a piece of sheetmetal that has bent out of shape to the
the bad news of compressor rod cap starting to knock. Do monitor your
system to see if this clicking turns into a knock.

I do think an experienced tech would be able to pinpoint the cause for
you. Obviously by posting, you may not know who they may be and since
I do not know your general vicinity, I do not know if I can help you
locate such a contractor. I do suggest asking neighbors and
relatives, and double checking on Angie's list and Checkbook.com to
see if the contractor is consistenet. I know of horror stories of
relying on BBB or Chamber of Commerce, so I am sending you to consumer
inspired sites. Of course, if you are in WNC, feel free to email
me. :-)

There is a reality, that I feel it would be an injustice not to point
out: 15y is the average servicable life for this piece of equipment.
You have gotten a great life out of it. I suggest being proactive and
start saving for the future for when it is time to replace this piece
of equipment.



Posted by Tony on February 17, 2008, 1:01 pm

>I know this does not help. It can be any number of things. It can be
> as simple as a piece of sheetmetal that has bent out of shape to the
> the bad news of compressor rod cap starting to knock. Do monitor your
> system to see if this clicking turns into a knock.

You mean that guys don't what is that hahaha
That is bin ladin sending mors code

>
> I do think an experienced tech would be able to pinpoint the cause for
> you. Obviously by posting, you may not know who they may be and since
> I do not know your general vicinity, I do not know if I can help you
> locate such a contractor. I do suggest asking neighbors and
> relatives, and double checking on Angie's list and Checkbook.com to
> see if the contractor is consistenet. I know of horror stories of
> relying on BBB or Chamber of Commerce, so I am sending you to consumer
> inspired sites. Of course, if you are in WNC, feel free to email
> me. :-)
>
> There is a reality, that I feel it would be an injustice not to point
> out: 15y is the average servicable life for this piece of equipment.
> You have gotten a great life out of it. I suggest being proactive and
> start saving for the future for when it is time to replace this piece
> of equipment.
>
>



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