How do I clean the coils on my Lennox air conditioner?

How do I clean the coils on my Lennox air conditioner


This article is to help you understand what you should do before and after cleaning your air conditioner coil.

We will firstly go over the process of cleaning the coils and then we will discuss what we should do before we clean them.

Before we start, it is important to know that there are two types of coils:

A refrigerant coil and an evaporator coil. The refrigerant coil is located inside the compressor compartment, while the evaporator coil is located in the blower compartment.

We should always turn off our Air Conditioner or turn down its thermostat before we clean it.

You can also clean the Air Conditioner coil inside your house if you have minimum cleaning and part location knowledge.

Where are the coils on a Lennox air conditioner?

How do I clean the coils on my Lennox air conditioner?

The coils are located on the side of the air conditioner, usually on the bottom. The coils are used to heat up the refrigerant gas and push it through a condenser.

This is what changes high-pressure gas into a high-pressure liquid. The liquid then moves to an expansion valve which releases some of its pressure and turns it back into a gas.

How do you clean a Lennox condenser coil?

To clean a Lennox condenser coil, 

  1. First, you have to cut the power to the Air Conditioner and thermostat.
  2. Remove the Panel from all the sides with the help of a screwdriver or socket.
  3. Rinse the Coil from all four sides with Hose from upside to bottom.
  4. After cleaning the Coils Let them Drain/Dry fully.
  5. Put all the panels back in the Unit and screw them tightly.

Can I clean my air conditioner coils myself?

Yes, if you follow the above-mentioned steps you can easily clean your air conditioner coil all by yourself. Many people clean their air conditioner by themself because it gets dirty more.

And calling the technician, again and again, can cost you a fortune. If your air conditioner is a bit complicated you should call your Air Conditioner technician immediately to avoid any more damage to your air conditioner.

What are the symptoms of a dirty evaporator coil?

How do I clean the coils on my Lennox air conditioner?

An evaporator coil is a component of an air conditioner that cools the refrigerant. It is located outside the house, so it can be exposed to different elements like dirt, leaves, and bird droppings. This can result in a dirty evaporator coil.

There are some symptoms that indicate your evaporator coil needs to be cleaned:

– The air coming out of the vents is not cold enough

– The air coming out of the vents smells bad

– Your home or office feels humid even if you have it set on dry cool mode

What can I spray on my AC coils to clean them?

You can spray running clean water only to clean the air conditioner coil. If the coils are dirtier then you can also mix detergent with water to clean them off.

There is also a cleaning agent solution in the market that can clean your dirty coils easily. But make sure to clean it with tap water after cleaning it with a cleaning agent to clean all the residue of the cleaning agent.

How often should AC coils be cleaned?

How do I clean the coils on my Lennox air conditioner?

Air conditioning coils should be cleaned every 2-3 times a 1 year.

As the Coil unit is located outside it handles all the dirt and dust including the grass or any other particle coming from outside. You should clean your air conditioner coils more often.

Cleaning the air conditioning coils is a necessary maintenance procedure that should not be neglected. It can help keep your AC running efficiently and save you money on power bills.

What happens if my AC coils are dirty?

Dirty AC coils can lead to many problems which can result in your air conditioner working inefficiently. Dirty coils can be the reason why your air conditioner is not cooling the house and the quality of air can be pretty bad to breathe due to the bad smell coming from the Dirty coil. A Dirty Coil can also lead your outside unit to stop working.

How long before I can turn on the AC after coil cleaning?

There is no set time that you need to wait before turning on your AC after a coil cleaning. If the coils are dirty, it will take a little longer for them to cool down.

The time it takes for your AC to cool down after a coil cleaning depends on how dirty the coils were before the cleaning. The dirtier they are, the longer it will take for them to cool down.

what can I use to clean my ac condenser coils

There are many ways you can clean your ac condenser. Here is a list of items that can be used to clean an AC condenser coil.

One way to clean an AC condenser coil is to use a vacuum cleaner. A vacuum cleaner will remove any dirt and dust from the surface of the coil. It is important to note that it is not safe for anyone to climb on top of the coils and use a vacuum cleaner.

Another way to clean an AC condenser coil is by using a wet cloth. A wet cloth should be used in order to wipe down any dirt and dust from the surface of the coils. You can also spray water with a detergent solution. Remember to switch off your air conditioner and thermostat as this could cause electrical shock or electrocution.


Cleaning your Air conditioner Coil can increase the life and efficiency of your air conditioner. It also helps to cool your home as quickly as it can. If you skip any maintenance of your air conditioner it can also damage your air conditioner unit which can cause your air conditioner to stop cooling and it might stop working at all.

So cleaning and maintaining your air conditioner can save you a heck of money and power consumption. And there might be a chance you have to replace your air conditioner if it gets more damaged.

ALSO READ :- Why my Air conditioner not keeping up with thermostat

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