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re: AC blowing hot air / turning it off and immediately back on fixes it

Posted on 9/19/17 at 4:13 pm to
Posted by JetFuelTyga
Born in desert,raised in lion's den
Member since Feb 2016
1799 posts
Posted on 9/19/17 at 4:13 pm to
Same thing happened to me. Ended up being a problem with the continuum transfunctioner. Pretty expensive fix
Posted by BRbornandraised
Baton Rouge, LA
Member since Jun 2013
585 posts
Posted on 9/19/17 at 4:13 pm to
Look up blend door actuator, blend door actuator motor. Sounds like either the actuator is stuck, the motor is bad, or the wiring between the two and the temperature control is bad.
Posted by SuperSaint
Sorting Out OT BS Since '2007'
Member since Sep 2007
150187 posts
Posted on 9/19/17 at 4:15 pm to
I switch it up and ya not a big deal to me.


But if they have the Mitchum advanced clear gel, I'm grabbing it up.... I'm no doubt a Mitchum Man
Posted by SwampBandit
Livonia, La
Member since Jun 2016
3818 posts
Posted on 9/19/17 at 4:17 pm to
Probably a failing capacitor or bad connector somewhere..Could need to be topped off and make sure you clean your outside unit...Also keep that filter changed baww
Posted by adamb2151
Houston, Texas
Member since Jun 2013
6586 posts
Posted on 9/19/17 at 4:18 pm to
Could be thermostat wiring.
Posted by JoePepitone
Waffle House #1494
Member since Feb 2014
12028 posts
Posted on 9/19/17 at 4:20 pm to
that Mitchum will get your a/c cooling every time
Posted by Undertow
Member since Sep 2016
9113 posts
Posted on 9/19/17 at 4:23 pm to
I should add that it's been serviced several times in the last year. I have new evaporator coils, a new thermostat, coolant level checked, and a hard starter(not sure if that's the right name - was installed to remedy the contactors repeatedly welding themselves together). Filter is fresh too.
This post was edited on 9/19/17 at 4:25 pm
Posted by dragginass
Member since Jan 2013
3240 posts
Posted on 9/19/17 at 4:26 pm to
We have fleet Chevy's that do this. I think the fix was a relay or switch.
Posted by stealthy1
Member since Aug 2007
558 posts
Posted on 9/19/17 at 4:27 pm to
Try pulling the cover off your thermostat and holding down the reset button (it'll be on the circuit board, and generally labeled "Reset". Not a bad idea to change the t-stat batteries st the same time.
Posted by td1
Baton Rouge
Member since Oct 2015
3171 posts
Posted on 9/19/17 at 4:43 pm to
What kind of thermostat do you have? If you have single stage system, check to make sure that your thermostat is setup and wired correctly for a single stage system and not a two stage system and vice versa.

Other things you can check.

When you turn it on and it is blowing hot, check the outside unit and see if the fan is running / the compressor is running, if not check the low voltage wires at the contactor outside and see if there is 24V AC present. If so check to see if the contactor is pulled in, you may have another bad contactor or contacts within it. Hard start will only work for so long, too. The compressor may be shot.

Posted by tigeraddict
Baton Rouge
Member since Mar 2007
14777 posts
Posted on 9/19/17 at 4:44 pm to
Compressor contractor sticking?
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