Chances are your air conditioning will stop blowing out cold air on the hottest of days. It’s known as Murphy’s law.
A good reaction to this is to put in a call to an industrial air conditioning firm, they’ll have the expertise and parts to get you up and running again before the winter arrives.
However, it is good to have a little knowledge yourself, this will help you to understand what they are talking about. You may even be able to resolve the issue yourself.
The most common reasons for your air conditioner not cooling are:
Lack Of Power
Perhaps the most obvious fault and potentially the easiest to resolve is a lack of power. You’ll need to check your circuit breaker to confirm there is power going to the air conditioner.
If the breaker is on and the air conditioner is not turning on then you may have a blown fuse on the air conditioner unit or the thermostat may simply be set wrong. Make sure the thermostat is set to cool, if it isn’t your air conditioner will never blow out cool air!
If none of these things is the issue you’ll need to check the motor and compressor. A problem with these is much more serious and will need professional intervention.
No Cold Air
If the air conditioner turns on but blows out warm air, assuming your thermostat is now set properly, you may have a filter issue.
Blocked or dirty air filters prevent the air from going through the air conditioners, making it impossible for it to blow cool air into the house. To combat this issue you’ll need to clean all the filters thoroughly. It’s also a good idea to check there is nothing overgrowing the filters, partially blocking air entry.
If you’re not sure then pull the filter out of the unit. If you can see through it then it’s okay, if not, it needs a clean or replacing.
Blowing Cold Air But Your Home Is Still Warm
You’ll want to check that the air conditioner is capable of cooling your entire home. It is possible that the unit has been incorrectly sized. While it will be capable of reducing the temperature a little it will never manage to cool it completely as the space is too big for the air conditioner you have.
To test this theory focus the cold air on one part of your home and close interior doors. If the space cools then the unit is working properly but is not big enough for your home.
You’ll need to consider exchanging it or adding a second unit.
In most cases, if the problem isn’t one of the three above you probably have an issue with the motor or the compressor. These should be examined by a professional, they can tell you the issue and quote for a repair. You’ll just have to make the decision regarding whether to replace it or repair it.