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Started By
Message
Air conditioning issue
Posted on 6/27/21 at 1:15 pm
Posted on 6/27/21 at 1:15 pm
No offense, but I'm asking y'all as a last resort as the ac company I'm using doesn't know what's going on.
My ac is doing this thing where the compressor will shut off and immediately come right back on, while the fan inside continues to blow. It's like it's getting a mixed message from the inside temp and gets confused, thus shutting off and coming right back on.
AC company came out, checked everything and couldn't find an issue. Google says it's low refrigerant, but ac guy who came said it's at the level it's supposed to be.
Anyone else ever deal with this? It's driving me nuts and I'm worried that sudden starts/stops is going to kill my compressor.
I'd rather not pay more $$ just for the company to come back out and tell me there's no issue.
My ac is doing this thing where the compressor will shut off and immediately come right back on, while the fan inside continues to blow. It's like it's getting a mixed message from the inside temp and gets confused, thus shutting off and coming right back on.
AC company came out, checked everything and couldn't find an issue. Google says it's low refrigerant, but ac guy who came said it's at the level it's supposed to be.
Anyone else ever deal with this? It's driving me nuts and I'm worried that sudden starts/stops is going to kill my compressor.
I'd rather not pay more $$ just for the company to come back out and tell me there's no issue.
18
Posted on 6/27/21 at 1:16 pm to lsuwontonwrap
What kind it thermostat do you have?
Posted on 6/27/21 at 1:16 pm to lsuwontonwrap
Subtle I have central AC brag
Posted on 6/27/21 at 1:17 pm to fightin tigers
quote:
What kind it thermostat do you have?
This was going to be my question. A lot of folks install smart thermostats and face some hiccups
Posted on 6/27/21 at 1:18 pm to RIPMachoMan
It sort of sounds like short cycling. So that is why I asked.
discussed on the H&G board
discussed on the H&G board
This post was edited on 6/27/21 at 1:19 pm
Posted on 6/27/21 at 1:20 pm to lsuwontonwrap
Did they check the control panel? Our control panel went bad, and made the AC wonky. Not sure it was doing what you described.
Posted on 6/27/21 at 1:20 pm to lsuwontonwrap
Could be a faulty contactor on the outside unit, how often is it happening and how long does the compressor stay off?
Posted on 6/27/21 at 1:21 pm to fightin tigers
I’ve actually encountered an issue that sounds similar, but the culprit was wiring/power to the thermostat as the root cause.
Damn thermostat tech support probably saved me a lot of $$
Edit: spot on. Good link for the OP
Damn thermostat tech support probably saved me a lot of $$
Edit: spot on. Good link for the OP
This post was edited on 6/27/21 at 1:24 pm
Posted on 6/27/21 at 1:22 pm to lsuwontonwrap
I just had to replace both of my AC units
FML
FML
Posted on 6/27/21 at 1:23 pm to fightin tigers
quote:
What kind it thermostat do you have?
Just a regular digital thermostat. Not a "smart" one.
Posted on 6/27/21 at 1:24 pm to fightin tigers
I didn't even know about the home and garden board. Thanks!
ETA: RA'd to move to H&G board. Thanks.
ETA: RA'd to move to H&G board. Thanks.
This post was edited on 6/27/21 at 1:26 pm
Posted on 6/27/21 at 1:25 pm to lsuwontonwrap
quote:
I didn't even know about the home and garden board. Thanks!
Best board on the site.
Posted on 6/27/21 at 1:27 pm to lsuwontonwrap
The condenser fan could be going off. The motor could be running slow because of bad bearings. Thus allows the compressor to cycle on and off when it overheats and then cools down.
Posted on 6/27/21 at 1:36 pm to lsuwontonwrap
It could be the condenser going bad. But it also could be bad contact with wires behind the thermostat.. the wire need to be cleanly striped again so they can make better contact. AC guy did that at my house for free one time... and that was the issue. Now he's the only place I call.
Posted on 6/27/21 at 1:41 pm to lsuwontonwrap
Go into your attic and see if you have a float switch coming off the Evaporator Coil. Pull it out and check the drain line. It could be mostly clogged with a slow drain backing up on that float which will kill the condenser and the second the float drops back down it’ll kick on. Without a delay programmed into your thermostat it’ll just kick on and off. This will kill your compressor. Some brands it goes into reverse.
Posted on 6/27/21 at 1:43 pm to lsuwontonwrap
Replace thermostat
Posted on 6/27/21 at 1:45 pm to lsuwontonwrap
Could be multiple things. Bad thermostat, bad control wiring from transformer to comtactor, bad contractor, bad safety switch.
Posted on 6/27/21 at 1:46 pm to GeneralLeeAwesome
quote:
Go into your attic and see if you have a float switch coming off the Evaporator Coil. Pull it out and check the drain line. It could be mostly clogged with a slow drain backing up on that float which will kill the condenser and the second the float drops back down it’ll kick on. Without a delay programmed into your thermostat it’ll just kick on and off. This will kill your compressor. Some brands it goes into reverse.
Surely his AC guy would have checked this, right?
Posted on 6/27/21 at 1:51 pm to blackandgoldGOD
You can install a delay timer to prevent the short starts and avoid smoking the compressor. A long term band-aid I've used in commercial AC applications Protection from screwballs operating the thermostats and fast switching t-stats.
Posted on 6/27/21 at 1:51 pm to lostinbr
I mean who knows. I have a procedure that I do on every call. I go the the thermostat the, evaporator coil then the condenser. I check all components of the system every unit I look at. Not all service techs do that.
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