Why is my air conditioner not blowing cold air?

Air conditioner not blowing cold air

If your AC unit is not blowing cold air, an air conditioning engineer can diagnose the problem for you.

Rather than endlessly googling ‘my AC is not cooling,’ call an engineer straight away. There are several things it could be, and unless you’re an expert in this field, it’s hard to figure it out yourself.

Potential reasons why the air conditioner isn’t cooling

1. Thermostat issue

AC not blowing cold air? It could be as simple as your AC fan being on the wrong setting. We recommend using the ‘auto’ setting on your thermostat. This will then turn your AC fan off automatically when the room reaches a temperature that you’re happy with.

2. Potential blockages

Your AC unit will struggle to pump out cool air when the air filters are clogged. They can easily become blocked due to a build up of dust or debris.

It’s a good idea to check your air filters every now and then to prevent this from happening.

3. Blocked or clogged condenser coil

If your air conditioning is still running but failing to pump out cool air, you may have a blocked or clogged condenser coil.

4. Electrical connection

A valid reason why your air conditioning unit may not be performing correctly is because of an issue with the electrical components or connection. You likely won’t be able to detect this, so it’s best to call an AC engineer.

5. Issue with the capacitor

An AC capacitor provides the initial push of electricity that your unit needs to run properly. It sends the electricity to your unit’s motors to start the cooling cycle. If there is a problem with the capacitor, then it can stop your unit from releasing cool air.

What to do if your air conditioner isn’t cooling?

If it’s a minor problem, such as an obvious issue with the thermostat, you can easily fix it yourself.

However, if you think it’s something a little more complicated, then it’s always a good idea to consult an AC engineer to diagnose and fix the problem.

How much does it cost to fix a broken AC unit?

An air conditioning engineer will on average, charge £50 per hour to service an air conditioning unit.

If you require a call-out to your location, you could be charged a call-out fee of approximately £130-£180 on a weekday or £170-£220 on a weekend. Note these charges include the first hour of work.

You should consider the following costs when it comes to fixing an AC unit:

• Labour charge and call out fee
• The cost of any new refrigerant
• Any other new parts that are required to fix you AC unit

How to prevent this from happening in the future?

There are many different AC units on the market, each requiring different care and maintenance.

However, you should generally get your AC unit serviced once a year to prevent major issues.