8 Common Mistakes on DIY Air Conditioner Servicing

Do you know what happens when a DIY air conditioner servicing goes wrong? The answer is simple: it can lead to all sorts of problems, including lost time, money and even personal safety. Check out this post before to find out whether to DIY or get a pro. And if that isn’t enough to convince you not to do your own air conditioning service, then maybe the 8 common mistakes listed below will be!

1. Not checking the filter

Not checking the filter means that dirt and debris are not being removed from the air. This can lead to a buildup of pollutants in your home, which may irritate allergies and asthma. Failing to check this also leads to an increased chance of needing replacement parts sooner than you might otherwise need them if everything is working correctly.

2. Using a dirty rag to clean your unit’s coils

Dirty rags can lead to harmful bacteria and mould that seep into the air. Failing this step may also leave behind ugly streaks or other unsightly marks on your unit, which will require more time spent cleaning later down the line if not done now.

3. Forgetting to check for leaks on all pipes and joints before starting work

Leaks can lead to the air conditioner not properly cooling your home, which will waste energy and money. It also means that you didn’t do a proper job servicing the unit if there is still leaking present.

4. Forgetting to turn off the power before working on it

This is a basic rule for any electrical work. Turning off the power to your unit will reduce the risk of shock or electrocution and also make it easier when you need to turn it back on again.

5. Ignoring water in the drain pan or not cleaning it out after servicing

Water in the drain pan can cause serious damage to your home’s floors and walls. It also makes it harder for the air conditioner to cool your home if water is present, as this will add more heat into the system, which needs time to dissipate before cooling properly again.

6. Overtightening bolts that hold components together

Again, this is a basic rule of taking things apart and putting them back together. Overtightening screws can cause damage to the sealant gaskets or other components that are being reassembled, which could lead to leaks in your system down the line.

7. Ignoring any warning signs such as a change in sound, smell or temperature 

One of the most common mistakes people make when completing the servicing is ignoring any warning signs. The following are a few warning signs to be on the lookout for:

If you notice your air conditioner making unusual sounds, smells, or feels hotter than usual, it may need more attention and professional servicing. And if you ignore it and continue to use it, it could eventually lead to an air conditioner breakdown.

8. Failing to check for corrosion on metal components, such as copper pipes and electrical connections 

One of the most common mistakes people make when completing DIY Servicing is failing to check for corrosion on metal components. Copper pipes and electrical connections are two examples of where you should look out for potential corrosion, which can cause leaks or a system breakdown if not repaired.


If you want to keep your air conditioner performing at its peak, then it is important that you do not make any common mistakes when doing DIY AC Servicing. You need to use the right tools for the job and always be mindful of warning signs so as not to cause unnecessary damage or harm your system down the line. Feel free to contact us if you need any help.

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