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EveryonesACoach
LSU Fan
Baton Rouge
Member since Nov 2012
656 posts

OT Air Conditioning Experts: Suggestions?
Looking for some suggestions. Periodically my condensing unit outside will start but the blower won't turn on. Without air moving, the house won't cool, and the condenser will continue to run unless I turn the thermostat to off. A few minute wait after flipping the circuit breaker off and on and resetting the thermostat and everything is fine again. Sometimes it happens as often as 24 hours apart, sometimes a number of days. At times when the air won't blow, I can flip the thermostat to heat and it'll blow immediately, no reset of anything required. The only thing I knew to look for was if the pan was full, but it's bone dry. Anyone have this issue before?

Update: Changed the thermostat out last Monday, worked fine until Saturday, and now the fan never powers on. AC guy came out, said capacitor is fine, looks like I need a replacement circuit board. Got back to me today with a cost of $600+. Is this something that is out of the realm of google and youtube to replace myself or what?
This post was edited on 6/20 at 12:20 pm


Cajun Invasion
New Orleans Saints Fan
Abbeville, Louisianna
Member since Jan 2012
1679 posts

re: OT Air Conditioning Experts: Suggestions?
Sounds like a bad thermostat


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Old Sarge
Arkansas Fan
Dean of Admissions, LSU
Member since Jan 2012
37954 posts

re: OT Air Conditioning Experts: Suggestions?
New capacitor is needed
$35


EveryonesACoach
LSU Fan
Baton Rouge
Member since Nov 2012
656 posts

re: OT Air Conditioning Experts: Suggestions?
Isn't the capacitor on the condensing unit outside? It starts up fine every time, and continues to run even if the air doesn't blow.


meauxjeaux2
Xavier Fan
watson
Member since Oct 2007
60283 posts

re: OT Air Conditioning Experts: Suggestions?
Sounds like a bad timer in the evaporator unit


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bayoubrucebruce
LSU Fan
Member since Jun 2008
146 posts

re: OT Air Conditioning Experts: Suggestions?
Tstat or indoor fan relay. Tstat may not be calling for fan to come on or fan relay isn't closing.
This post was edited on 6/13 at 7:57 am


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Enadious
LSU Fan
formerly B5Lurker City of Central
Member since Aug 2004
15778 posts

re: OT Air Conditioning Experts: Suggestions?
Since the fan comes on with the heat (I'm assuming every time), I'd vote for the thermostat too. It's easy to change out, just use a new battery.


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Old Sarge
Arkansas Fan
Dean of Admissions, LSU
Member since Jan 2012
37954 posts

re: OT Air Conditioning Experts: Suggestions?
Sorry, I misread, I thought you were saying the cooling fan on the compressor wasn't coming on:


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FISH N TIGER
LSU Fan
Just up the road a bit.
Member since Jun 2007
1082 posts

re: OT Air Conditioning Experts: Suggestions?
Contacts are sticking on outside unit, the arc every time the unit comes on and are made of brass they get pits in them causing it to stick, get someone to check that out first.


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brew400
LSU Fan
West side Best side
Member since Sep 2009
467 posts
 Online 

re: OT Air Conditioning Experts: Suggestions?
Relay on control board is sticking. New control board should take about 30 min to install. Call a technician.


meauxjeaux2
Xavier Fan
watson
Member since Oct 2007
60283 posts

re: OT Air Conditioning Experts: Suggestions?
quote:

Relay on control board is sticking. New control board should take about 30 min to install. Call a technician.
correct. Some call it a fan timer relay. Some call it a fan sequencer, etc. etc. etc.

Either way the blower in the evaporator is not coming on when commanded to do so at times. The outside condensing unit is working just fine. No capacitor,contactor issues.


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EveryonesACoach
LSU Fan
Baton Rouge
Member since Nov 2012
656 posts

re: OT Air Conditioning Experts: Suggestions?
Thanks for the helpful suggestions everyone. I might try a new programmable thermostat first, it'll be an upgrade over our current one anyway. Otherwise it looks like I'll be calling in a pro.


meauxjeaux2
Xavier Fan
watson
Member since Oct 2007
60283 posts

re: OT Air Conditioning Experts: Suggestions?
Ecobee FTW


baldona
Auburn Fan
Florida
Member since Feb 2016
6008 posts
 Online 

re: OT Air Conditioning Experts: Suggestions?
Most AC computer boards, capacitors, and thermostats are incredibly easy to fix. They are basically just unplug and plug, and super easy to find. You should change your capicitor also if you do any work on it and it's 5+ years old, those are some of the most common things to go out and a technician tried to charge me $225 to replace the $20 part in 10 minutes when I was out of town.

The 3 parts listed in this thread are all $100 combined and less than 30 minutes of work with Google as your only experience, id change all those before calling someone.


brew400
LSU Fan
West side Best side
Member since Sep 2009
467 posts
 Online 

re: OT Air Conditioning Experts: Suggestions?
He didn't just charge 225 for a cap, he charged you for a truck full of tools and parts to show up in your driveway with an insured and trained individual to test and ensure all you needed was a cap. You should have changed that before you called.


shawnlsu
LSU Fan
Member since Nov 2011
14128 posts
 Online 

re: OT Air Conditioning Experts: Suggestions?
Does your current thermostat take batteries. Mine did the same as yours one year when I forgot to change the batteries.
Now that I installed the Ecobee, it gets power from the unit so no more batteries


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windmill
LSU Fan
Prairieville, La
Member since Dec 2005
5374 posts

re: OT Air Conditioning Experts: Suggestions?
Beautiful


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