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HVAC question
#8629287
06/27/22 01:50 AM
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Joined: Mar 2010
Posts: 12,205
ntxtrapper
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OP
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Fairly new system and there was a slight change in sound while it was running but just for a second. Almost like a partial power outage and now it's running hot air. Outside fan runs, line set isn't frozen and a brand new filter. I turned it off for a few minutes and back on with no change. Any ideas?
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Re: HVAC question
[Re: ntxtrapper]
#8629292
06/27/22 01:57 AM
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Joined: Dec 2012
Posts: 4,800
TexasKC
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If I had to guess I'd say its a bad capacitor.
In the end, it's not the years in your life that count, it's the life in your years.
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Re: HVAC question
[Re: TexasKC]
#8629297
06/27/22 02:04 AM
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Joined: Dec 2009
Posts: 13,015
bucksnbass357
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If I had to guess I'd say its a bad capacitor. Most likely
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Re: HVAC question
[Re: bucksnbass357]
#8629322
06/27/22 02:32 AM
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Joined: Apr 2005
Posts: 19,818
TurkeyHunter
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If I had to guess I'd say its a bad capacitor. Most likely If you know what you’re doing it’s handy to buy one online or Grainger just to have on hand.
To be determined
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Re: HVAC question
[Re: ntxtrapper]
#8629351
06/27/22 03:03 AM
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Joined: Jun 2015
Posts: 18,727
Roll-Tide
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If it is capacitor. Buy 2, one for next time. Write date installed on the side of it with a marker.
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Re: HVAC question
[Re: Roll-Tide]
#8629354
06/27/22 03:07 AM
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Joined: Apr 2005
Posts: 19,818
TurkeyHunter
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If it is capacitor. Buy 2, one for next time. Write date installed on the side of it with a marker. And make sure you know about handling capacitors. Good multi meter is also helpful.
To be determined
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Re: HVAC question
[Re: ntxtrapper]
#8629356
06/27/22 03:10 AM
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Joined: Dec 2011
Posts: 5,834
Lazyjack
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You could have had a brown out or brief power outage. If so, there is a thermal overload deep inside compressor that probably tripped. It opens on high internal temperature of compressor. Compressor will not run untill the compressor cools a bit, almost to ambient temp. Thermal overload will reset and compressor will start and run.
Could 1 to 3 hours to reset.
This is common in extreme grid loads. Hope that was all that happened. Good luck
If the 2nd amendment was written just to include guns for hunting, why is there not an amendment to protect fishing poles?
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Re: HVAC question
[Re: ntxtrapper]
#8629359
06/27/22 03:16 AM
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Joined: Jul 2005
Posts: 3,309
Stump_jumper
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When the capacitor failed on my outside unit the fan quit running.
2017 Tundra 5.7 CM 4x4 2006 Champion 2200 Bay Boat
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Re: HVAC question
[Re: Lazyjack]
#8629367
06/27/22 03:38 AM
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Joined: Mar 2010
Posts: 12,205
ntxtrapper
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You could have had a brown out or brief power outage. If so, there is a thermal overload deep inside compressor that probably tripped. It opens on high internal temperature of compressor. Compressor will not run untill the compressor cools a bit, almost to ambient temp. Thermal overload will reset and compressor will start and run.
Could 1 to 3 hours to reset.
This is common in extreme grid loads. Hope that was all that happened. Good luck And you are the winner! Thank you very much. I knew that brief power outage had something to do with it. It just needed to cool off and I'm blowing cold air again. Thanks again.
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Re: HVAC question
[Re: ntxtrapper]
#8629377
06/27/22 04:52 AM
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Joined: Aug 2012
Posts: 2,779
nak
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Kill the breakers to the inside and outside units, then flip them back on.
Modern units have control boards in both the air handle and the compressor. Maybe cycling power will wake it up...
We all need to practice Whoa more.
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Re: HVAC question
[Re: nak]
#8629379
06/27/22 04:58 AM
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Joined: Mar 2010
Posts: 12,205
ntxtrapper
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Kill the breakers to the inside and outside units, then flip them back on.
Modern units have control boards in both the air handle and the compressor. Maybe cycling power will wake it up...
See above your post. Lazyjack nailed it.
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Re: HVAC question
[Re: ntxtrapper]
#8629400
06/27/22 10:19 AM
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Joined: Dec 2011
Posts: 5,834
Lazyjack
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You could have had a brown out or brief power outage. If so, there is a thermal overload deep inside compressor that probably tripped. It opens on high internal temperature of compressor. Compressor will not run untill the compressor cools a bit, almost to ambient temp. Thermal overload will reset and compressor will start and run.
Could 1 to 3 hours to reset.
This is common in extreme grid loads. Hope that was all that happened. Good luck And you are the winner! Thank you very much. I knew that brief power outage had something to do with it. It just needed to cool off and I'm blowing cold air again. Thanks again. Good deal
If the 2nd amendment was written just to include guns for hunting, why is there not an amendment to protect fishing poles?
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Re: HVAC question
[Re: ntxtrapper]
#8629463
06/27/22 12:50 PM
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Joined: Nov 2009
Posts: 91,416
bill oxner
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Quail hunting is like walking into, and out of a beautiful painting all day long. Gene Hill
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Re: HVAC question
[Re: ntxtrapper]
#8629483
06/27/22 01:19 PM
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Joined: Nov 2009
Posts: 5,428
RayB
red bone Bob
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red bone Bob
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If your going to play with a capacitor, after you turn the power off be sure and short across the terminals before touching them. They hold a charge. But do cycle the power before you do anything.
Last edited by RayB; 06/27/22 01:19 PM.
There is time, and you must take it, to lay your hand on your dog's head as you walk past him lying on the floor or on his settle, time to talk with him, to remember with him, time to please him, time you can't buy back once he's gone" GBE
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Re: HVAC question
[Re: bill oxner]
#8629486
06/27/22 01:24 PM
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Joined: Mar 2010
Posts: 12,205
ntxtrapper
OP
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Re: HVAC question
[Re: ntxtrapper]
#8629511
06/27/22 02:03 PM
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Joined: Sep 2007
Posts: 4,294
oldoak2000
Extreme Tracker
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You could have had a brown out or brief power outage. If so, there is a thermal overload deep inside compressor that probably tripped. It opens on high internal temperature of compressor. Compressor will not run untill the compressor cools a bit, almost to ambient temp. Thermal overload will reset and compressor will start and run.
Could 1 to 3 hours to reset.
This is common in extreme grid loads. Hope that was all that happened. Good luck And you are the winner! Thank you very much. I knew that brief power outage had something to do with it. It just needed to cool off and I'm blowing cold air again. Thanks again. Lotta newer units have a 5-min timeout timer in the control board. It helps protect the compressor from short-cycling. If these power or cycle off for any reason, it waits 5 min before allowing compressor to restart. Maybe your power flickered and caused a timer cycle?
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Re: HVAC question
[Re: ntxtrapper]
#8629614
06/27/22 04:28 PM
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Joined: Feb 2019
Posts: 1,440
Poppa
Pro Tracker
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it would still be a good idea to get a cap for the outdoor unit. its prolly a dual cap that serves the outdoor fan and compressor. it can and will fail on the fan side or comp side or both. unless you have an inverter driven unit which it dosent sound like you do.
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