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Make sure both the evaporator and condensor coils are clean. After the unit has been off for a couple of hours, start it back up and measure the temperature difference between the air entering into the unit (room air temperature) and the air blowing out of the unit and into your room. You should have approx 20 deg......take this measurement after approx 5 minutes of run time. If the temperature difference less than 15, you may very well have a refrigeration problem. If it is approx 20 degrees, then it could be a dirty coil or an electrical problem.......inspect all of your electrical wires and controls for any signs of overheating.....tighten all connections.
I hope you find this to be very helpful in your diagnosis. :-)
Read instructions and see if it says anything about cleaning or filters. A.C units **** air in and there is a filter that probably needs cleaned.Also,while cooling, the vent to the outside should put out warm air. Also, if it is less than a year old, contact the manufacturer and they should help you out. Good luck.
are the unit is upflow (on the closed) or horizontal (most like it on the attic) if is horizontal and the drain pan is full seems the main drain is clogged can you blow air thru drain? make sure you dont have a flow swith on the drain pan that prevent the condenser to come on
If you have ice on the Line you are iced up. If coil is iced no air can get thru. Now First. Turn of ac and turn fan to on posotion. That will thaw unit. Let it run 45 minutes. That should do it. If the fan is not running you amy have a bad fan relay. One of the reason iced up unit is dirty evap, coil inside. Try to thaw it out first. You can clean the coil with a stool brush. Does not damage the coils. Good luck
Welcome to fixya.
I'm Huuum and happy to assist you,
You said, it is not blowing cool air after you emptied the tank.
Turn the unit off and unplug it for 5 minutes.............
Then back in with the plug and turn it on max cool.
Give it 5 or 10 minutes to get cold, and we will see if this procedure has reset the system.
Then get back to me and let me know it's working!
How old is the unit?
Please remember to leave a rating before you go!
Thank you Huuum
sounds like the compressor may not be shutting off, that may be the sensor (t-stat) or a freon leak, but usually only a partial part of the coil freezes up if it was low on freon an would not be cooling properly. if under a year old call manufacture. if 2-5 years old may still be under warranty if the repair is a freon issue. if its the sensor your looking at about 40. fot the part and roughly 75-95 for labor (depending were you take it too). check your purchase date and read your warranty 1st