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I just experienced this problem myself. What helped me was cleaning out the lint trap. My guess is that the until sucks in air through there, then conditions it. Blows the cold air out the top, and hot air out the tube. When it can't suck a decent amount of air in, the condenser can only condense so much of that limited amount of air. When it runs out, the unit just runs the fan until enough air has been condensed.
My lint trap was filthy, hadnt Bern cleaned in years. Soon as I popped it off, the unit started belching out cold air nonstop. Clean your lint traps! Don't make my mistake!
It sounds like the coolant charge is marginal. There are sensors that can monitor the pressure levels and can disable the compressor to prevent damage to it.
You need a tech to check the system before you lose it completely.
Figure on $100-120 cost for check and recharge if needed.
It sounds like you have a unit called a heat pump. When a heat pump unit is in cooling mode the outside unit blows hot air and the inside unit blows cold air. If the outside unit is blowing cold then the indoor unit is most likely blowing room temperature or warm air. It sounds like the thermostat could be controlling incorrectly or you could have a failed reversing valve which is the device that switches the unit from heating to cooling mode.
Either the unit is really dirty or it is low on refrigerant. A unit tha is low on refrigerant will start off cold and withing a few minutes, start warming up. If you aren't seeing any water its because of one or both causes listed.
Hello
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
You have either a faulty thermostat, dirty condenser and evaporator or a faulty run capacitor. Need to service soon before the compressor is damaged. Sea Breeze
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