My air conditioner/heater has a strange sound it started making under the hood - when you turn either of them off it stops. The heater seems to still be working and the air conditioner is cooling, just not very cool. This is continual. Any suggestions as to what may be wrong?
If your system is getting low on freon the low pressure switch won't let the AC compressor run until its been recharged and pressure is back to normal, have a shop check for low freon www.repairpal.com/directory
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Thanks so much!