There are many reasons why your A/C may be blowing tepid air.
The temperature control is a good place to start looking for the culprit.
It sounds too easy. This is a regular reason why your a/c might be doing the opposite of what it should, however low refrigerant can cause your a/c to only blow tepid air, do not attempt to repair this yourself. Coolants, also known as refrigerants, can be entirely dangerous. To purchase plus handle this substance, you must be a licensed Heating plus Air Conditioning serviceman. Your Heating plus Air Conditioning system’s air filters may seem uncrucial, however they are essential; Heating plus Air Conditioning filters detach dust, dander, plus other airborne contaminants from the air reentering your home from the system… Over time, the debris that’s caught will clog up your air filters! When this happens, your a/c will struggle to push air past the filter into the system. This strain can lessen air flow plus even cause your plan to blow warm air instead of cool. Take a peek at your filters, plus if they’re dirty, upgrade them to see if it makes a difference in airflow plus temperature! Frozen evaporator coils can cause your plan to blow tepid air as well. Some things which can be preventing airflow to the evaporator coil include blocked air ducts, a dirty coil, or low refrigerant. If you find your plan frozen over, turn off your a/c plus supply your local Heating plus Air Conditioning supplier a call instantly. Your serviceman will be able to inspect the problem plus have your plan properly thawed out.