Clean your coil with a garden hose with an adjustable nozzle. Set the water pattern to a wider, gentler setting like “Flat” or “Shower.” Do not use the “Spray” setting. Begin at the bottom of the unit and slowly wash a few inches across, spraying left and right across the coil.
A blocked condenser coil directly lowers the amount of cooling that your air conditioning system provides. A principal reason behind this is that the obstructed AC condenser coils clog the airflow as the dirt serves as a barrier between condenser coils and refrigerants.
The AC coil cleaning cost is around $100 to $400 as of 2024, according to Homeguide (for an evaporator coil), and up to $700 to remove and clean the coil. Cleaning the condenser coil costs $75 to $230.
Regularly cleaning AC coils is a crucial part of air conditioning maintenance. It not only improves the system's efficiency and cooling performance but also contributes to energy savings. Depending on usage, environmental factors, and specific health needs, cleaning the coils every two to six months is recommended.
The coils play a crucial role in the refrigeration cycle, removing warmth from the refrigerant by converting it from a gas to a liquid. However, when these coils become clogged with dust, pet hair or kitchen debris, their efficiency plummets. Dirty condenser coils cause your fridge to work harder and less effectively.
The condenser coil is located outside the home, and it's where the refrigerant releases the heat it absorbed from inside. It is responsible for rejecting the energy taken up by the evaporator coil into an external environment, usually an outdoor air source.
Yes, you can use water to clean the condenser, but be gentle. Use a garden hose to rinse off the coils after applying a cleaner. Don't use strong water pressure because it can damage the coils. Let the unit dry before turning it back on.
First, check your filters and coils for dirt and debris that may be impeding airflow. Once you've cleaned the filters and coils, run the air conditioner with just the fan so that the ice accumulation can melt off. If the AC still doesn't blow cold air, it could be that refrigerant levels are too low.
A very useful diagnostic aid is the “Feel Test”. As the test implies it is a matter of quite simply feeling tubes and components for temperature drops, indicating possible blockage location. By this stage you would be aware of what side of the A/C system should be hot and what side should be cold.
You can either use a commercial coil cleaner or make your own by mixing water and vinegar in a spray bottle. Spray the mixture onto the coils and let it sit for five to ten minutes to break down any stubborn dirt.
Signs of Damaged Evaporator Coil Components
Air coming from the vents is warm. Air conditioner starts and stops frequently but doesn't properly cool your home. Air conditioner does not turn on. Refrigerant leak near the indoor cooling system components.
Clean up any debris around or in the unit, using gloves to remove leaves, sticks, or other bits of debris. Use a shop vacuum to remove any remaining dust or dirt from the unit. If the aluminum fins on the condenser coils are bent, use a fin comb to gently straighten them out. This can help the unit run better.
Turning on the AC Too Soon
Wait at least 30 to 60 minutes for the unit to dry. Water and dampness can interfere with the unit's operation and cause electrical components to short circuit.
The average AC coil cleaning cost is $250. The price of this service can range between $100 and $400, depending on several factors, including type, cleaning method, labor, size of your AC unit, and more.
Once you have the coils cleaned, your AC should go back to being more efficient and your electricity bill should go back to normal. Your unit seems to be running longer for no reason. When the AC coils are dirty, the unit has to work longer and harder to cool the inside space.
Spray the coils down with Simple Green All-Purpose Cleaner.
Let the Simple Green sit 10-15 minutes to penetrate heavier soils, and then hose it down again. After the coil cleaner has dripped off the coils, examine the coil surfaces for any areas that may need another application, and repeat this step as necessary.
The average cost of an HVAC service call is about $100 to $250, depending on the problem. The total hourly rate for an HVAC technician ranges from $65 to $150+ per hour, with additional parts costing anywhere from $40 to over $1000.
You cannot perform this as a DIY job. If you are not a certified HVAC or refrigerant professional, contact a certified professional to perform these tasks. They will test and ensure that your unit is safely and properly replaced.