carrier heat pump/ hot

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Old 09-01-14, 09:41 AM
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carrier heat pump/ hot

I have a carrier heat pump system thats about 12 yrs old and a 2 ton unit and was noticing as it was in cool mode for a while-cooling is ok ,that the copper pipe near the compressor was very hot and had a odd scent .last check up about 4 mo ago the freon (older type) was ok as to the level.
Is this a sign the compressor is failing ?
Is there something else maybe i can check?
I noticed it did have a quick start at the capacitor also.
Any info is appreciated
 
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Old 09-01-14, 10:23 AM
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Was it the suction line ( large pipe ) or the small pipe? It"s normal that the small line will be hot right at the compresser.
 

Last edited by skaggsje; 09-01-14 at 10:26 AM. Reason: correction
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Old 09-01-14, 01:29 PM
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ill recheck it in next day or two with a pic..i knew some of them get hot but didnt think that hot..
Anything else i need tovsee or get pic of while i am looking at it?
thanks
 
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Old 09-01-14, 10:11 PM
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When was the last time that your outdoor unit was rinsed?
The outdoor unit should be rinsed annually. If this isn't done the condenser coil will get dirty and the liquid line runs hot.
 
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Old 09-06-14, 10:43 PM
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it was just rinsed after coils cleaned ..and had cleaned them 5 mo ago also..
here are the pics '
that top pipe with orange stripe gets hot ,also the pipe stand alone.. going out and down the side of compressor does also.
there is a quickstart on it too
what does the silver device where the lines meet do? it it a reversing valve?
also which are supposed to be hot/cool in pic?
 
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Old 09-06-14, 10:57 PM
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the pipe stand alone.. going out and down the side of compressor does also.
The 2 pipes connected to the compressor are your hot gas line and your (cold) suction line. The pipe going down the side of your compressor is the hot gas line. It seems that I usually walk around with a burn on my forearm from this pipe on package units and geothermal units.

In cool mode the reversing valve sends the hot gas from the compressor to the outdoor coil.

In heat mode the reversing valve sends the hot gas from the compressor to the indoor coil on that package unit.
 
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Old 09-07-14, 09:17 AM
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ok ,similar to the pic i found here?
why the burnish smell though
 
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Old 09-07-14, 09:56 AM
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Smells can be tough to help with on the internet.
Verify that no wires are rubbing against hot gas lines.
 
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Old 09-07-14, 12:22 PM
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what about the coil there in pic the small one at reversing valve ,can that be a factor ?
and does a hard start indicate a start up issue?
 
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Old 09-07-14, 10:21 PM
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Does the reversing valve smell burned to you?

There is nothing wrong with using a hard start kit.
 
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Old 09-10-14, 11:37 PM
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I couldnt tell..I did notice the wire connectors to reverse valve coil were pretty cracked and i replaced them.I also changed out the capacitor ,is it a good idea to replace the hard start anytime you replace the capacitor? both look very worn out and capacitor looks like original old one.
.New capacitor type is 35/5/440vac ..old one was 35/5/370vac..will the new one being 440vac make a difference (it is correct part but round not oval)
If there is a slight dent in side of capacitor will that effect the performance of it?



I will retest for the smell in a bit after securing connections and wiring ,etc
Thanks
 
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Old 09-11-14, 10:10 AM
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The new hard start was a lot bigger than original one,2 times wider at least.old one was about the size of a half dollar in width an about 5 inches long .new one was a few inches longer as well.

.will that give it a higher boost..is for 90v thru 277..?
 
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