On our central A/C, the inside equipment is all coming on and working fine, but the compressor outside is not coming on. Electricity is getting to it (ask my dh how he knows lol). It's still in the mid to high 80's here today, so is there anything we can try ourselves? Yes, the thermostat is set correctly. The electricity blinked off this morning and right back on. Could that have killed the compressor? It never has before.....
2006-09-17 06:06:16 · 9 answers · asked by denise_109 3 in Home & Garden ➔ Maintenance & Repairs
This is often caused by open fuses to the compressor. If you had a power blip while the compressor was running, it's very possible it was short-cycled and blew the fuses. It can also happen during a brown-out (low voltage condition).
You will find them in a little box near the A/C compressor unit. First, you MUST go to the main circuit breaker panel and shut of the power to the A/C unit. Then, you can go back to the box, open it and remove the fuses. They'll be in an assembly with a wire handle on it that you pull out. If you know how to test them with a meter, you'll probably find at least one open (not conducting, blown). Or, anyone at your local hardware place can check them for you.
Replace the blown fuses, and all probably will be well. Be sure to turn off the demand for cooling at the thermostat before you put the new fuses in the fuseholder back in the box. Then go back to the breaker panel and restore all power. Then go to the thermostat and ask for cold.
While there certainly are other causes for the compressor to not run, this is very common. And checking the fuses before calling your local HVAC guys is a lot cheaper, and faster!
2006-09-17 06:14:34 · answer #1 · answered by MrPink 2 · 0⤊ 0⤋
I agree with the first 2 answers. But you may also want to get a professional out to check the freon level in the compressor. If the freon level gets too low, a low pressure switch will shut down the compressor to keep it from burning up.
2006-09-17 06:15:17 · answer #2 · answered by Robin 4 · 0⤊ 0⤋
Check the circut breaker. If its setting half way, Cut it all the way off, and then back on. If its on, not tripped, Have someone cut the t-stat on and off while your at the outside unit. You should be able to hear the contactor clicking if its getting low voltage. If you hear it clicking, Then ur not getting power to the outside unit, Go back to check breakers You can IM or email if more help is needed
2006-09-17 12:17:48 · answer #3 · answered by myothernewname 6 · 0⤊ 0⤋
Sounds to me like an electrical problem not "freon" problem. If system worked until power 'blink' then I would fist check breakers and fuses. If those are good then it may be that a capacitor went bad. It would be safer to call a pro if you don't know what you are doing.
2006-09-17 12:11:35 · answer #4 · answered by wowwhatwasthat 4 · 0⤊ 0⤋
There are two circuit breakers on that thing. One is on the box inside the house the other is outside at the unit. Check them both.
2006-09-17 08:32:07 · answer #5 · answered by Jim C 5 · 0⤊ 0⤋
If the air is chilly, and meaning the compressor is operating, then your fan motor on the condenser unit outdoors is undesirable. it would want to artwork even as the temps are sensible yet you'll overheat the unit in hotter climate and may want to harm it.
2016-11-27 20:14:42 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Check the filter on the compressor -- if it's full, it can jam up all the works.
2006-09-17 06:10:05 · answer #7 · answered by veus 2 · 0⤊ 1⤋
look for a reset button. Check circuit breakers
2006-09-17 06:40:27 · answer #8 · answered by Larry m 6 · 0⤊ 0⤋
Check your fuse box there is a switch there to check.
2006-09-17 06:08:58 · answer #9 · answered by fayem7 5 · 0⤊ 0⤋