22 Jul Why Is My Air Conditioner Blowing Hot Air?
As summer sets in and the temperatures are climbing, many of us may find ourselves turning to our air conditioners to relieve some of the summer heat and cool the interior of our homes. But what if your air conditioner is not helping to cool your home and is in fact doing the opposite by blowing hot air! This is a surprisingly common problem, and it always seems to happen on the hottest days of the year. While you may feel inclined to panic about melting in the heat, in many cases an air conditioner blowing hot air could be due to one of the common causes listed below. If you continue to have trouble with your air conditioner not functioning correctly, your local HVAC technician can always pay a visit to quickly identify and solve the problem.
Improperly Set Thermostat
An embarrassingly simple solution but all too common – somehow the thermostat has been set to ‘heat’ instead of ‘cool’. This can cause your air conditioner to blow warm air, even without a change in the temperature setting. Simply set your thermostat back to ‘cool’ and you’ll be back to comfortable temperatures in no time.
Weak airflow through the filters or ducts can cause the feeling of warm air being produced by your air-conditioning unit. If you know how to, clean the filters and see if your airflow recovers. If you continue to experience weak airflow, you may need the assistance of a professional HVAC technician to come and check the ducts and perform other diagnostics.
It’s possible that an excess of warm air is due to a circuit breaker being tripped or a fuse being blown. Trying to correct electrical issues yourself can be extremely dangerous, so call in a qualified electrical contractor for this one.
If refrigerant line joints and connections come loose, or your equipment has been improperly installed, you could have a refrigerant leak on your hands. As refrigerant can be dangerous to handle, give your local air conditioning contractor a call to repair the lines and install your air conditioner correctly.
Dirty Outside Unit
A dirty outside unit affects the airflow of your air conditioner, and means that it won’t cool your home correctly. Sticks, leaves, branches, weeds and dust can clog up your outside unit, so make sure you perform regular cleaning to clear away any obstructions. If the situation has gotten out of hand an AC tune up can help to get your system back to optimum function.
The compressor is one of the most important components of your air conditioning system, and when the compressor malfunctions, your air conditioning system will malfunction too. A compressor could be suffering from one of several issues, including electrical issues, overheating, and refrigerant problems. Leave compressor repairs to an HVAC professional as they will best be able to pinpoint the issue you’re facing and provide the right solution, including air conditioner replacement if necessary.
Although no-one wants to have hot air coming out of their air-conditioner, by identifying the cause of the problem, consulting with a professional when necessary and having your system tuned up annually, you can ensure your air conditioner is functioning optimally this summer.