Bergeman Plumbing & Heating Inc
(715) 376-2278

Bergeman Plumbing & Heating Inc (715) 376-2278Bergeman Plumbing & Heating Inc (715) 376-2278Bergeman Plumbing & Heating Inc (715) 376-2278Bergeman Plumbing & Heating Inc (715) 376-2278
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Bergeman Plumbing & Heating Inc
(715) 376-2278

Bergeman Plumbing & Heating Inc (715) 376-2278Bergeman Plumbing & Heating Inc (715) 376-2278Bergeman Plumbing & Heating Inc (715) 376-2278
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Checklist for Maintaining Your Air Conditioning System

Air Conditioning Maintenance Checklist

The start of summer is the perfect time to perform a basic inspection of your homes cooling system using the following checklist as a guide. 


1:  AC Unit Filters

Inspection and replace filters in HVAC system. 


Clogged or dirty filters can lead to numerous HVAC issues because the system will have to work harder to pull air into the system. If you are running the A/C often, check the filter at least every 3 months.


If the covers over the intakes in the house are coated with dust, that’s a sign the filters may need to be replaced. If the cover is caked in dust, odds are the filter underneath is absolutely clogged. By replacing these filters regularly, you will reduce the strain on the A/Cunit, reducing the chance that it will break down.


Because this is a recurring monthly maintenance item, you may want to have extra filters on hand. The primary filter on the air handling unit is more difficult to replace – you may want to have a professional do this one.


2:  Clean the Exterior Condenser/Compressor

Most residential A/C units have an exterior condenser/compressor that is (typically) mounted in the building’s backyard area. These units serve to cool the refrigerant used in the air handling unit and to take in air to feed into the HVAC system.


When debris gets into the compressor or its housing, the efficiency of the A/C system plummets and it becomes more prone to sudden failure. So, one basic A/C repair task is to turn off the exterior condenser/compressor and to clean it. This is a multi-step process that involves:

  1. Turn Off Compressor. Having an active fan blade spinning while trying to clean the compressor is dangerous. So, if you’re cleaning the compressor yourself, be sure to turn the unit off at its shut-off box. Then, find the circuit breaker switch that goes to the air compressor and shut it off too—just to make sure the unit doesn’t get turned on while you’re cleaning it.
  2. Remove Debris from Unit. The next step in this A/C repair process is to open the compressor’s top by using a screwdriver or wrench to remove the fasteners. Then, you can either remove the debris in the unit by hand or with a wet/dry vacuum cleaner.  Either way, be sure to wear gloves to protect your hands from insect bites, sharp objects, and poisonous plants that may be lodged in the system.
  3. Clean and Straighten the Fins. The thin metal fins on the sides of the air conditioning unit are prone to becoming clogged with dirt. When cleaning them, you can use a hose to spray the fins from the inside of the A/C unit, forcing the dirt and dust out of them. Then, you can      check the fins for bends and warps and use a flathead screwdriver or butter knife to straighten them out. This will help to improve air flow and reduce strain on the unit.
  4. Clean Area Around A/C Unit. Check the A/C unit’s surroundings and make sure that any nearby grass is trimmed low and other potential obstacles are removed. It may help to give the unit at least two feet of clear space free of branches, rocks, grass, or lawn furniture.
  5. Reassemble A/C Unit. Once done cleaning, replace the air compressor’s cover and fasten it in place. Then, turn the circuit breaker and the compressor’s switch back on. 


3:  Check Air Ducts, if possible

The air ducts used to carry air throughout the HVAC system are one of the most-overlooked A/C repair issues that property managers encounter. HVAC system ducts with holes or blockages prevent the system from working as intended and may place extra strain on the air handling unit, which leads to premature failure.


Damage to A/C unit ducts can happen for several reasons, such as:

  • Pest infestations (rats can chew through thin aluminum ducts with ease)
  • Water damage from condensation
  • Accidental mishandling of ducts
  • Corrosion of ducts


To prevent HVAC issues that require expensive repairs, it is necessary to check the air ducts for signs of damage. This is often easier in single-family residences, where the A/C system ducts are usually run through the attic’s crawlspace. In apartment buildings and other multifamily residences, this may be more difficult as the ducts may be in between floors that have no such crawlspace.


4:  Inspect the Refrigerant Tubing

In an air conditioning unit, there will be small metal tubes that run from the exterior condenser/compressor to the air handling unit. These tubes carry the system’s refrigerant between the air handler and the condenser/compressor to help regulate temperatures in the residence.


If these refrigerant tubes leak, then the system will need professional HVAC repair as soon as possible. This is because, without refrigerant, the system will not be able to cool the residence at all. These A/C repairs often require a professional’s touch to safely handle the coolant and to ensure that future leaks are prevented.


5:  Check the Evaporator Coil

While you’re checking the air conditioning unit’s interior air handler, you may want to turn off the system and inspect its evaporator coil. This may require you to remove some duct tape from the coil housing’s cover and/or loosen some screws.


Once open, look at the evaporator coil and check its condition. Some discoloration is typical. Here, you’ll want to make sure there is no dirt or debris on the coil. If the coil is dirty, clean it with a soft brush and spray it down with a specially formulated coil cleaner (often available at hardware specialty stores). The runoff from this cleaning will collect in the drain pan, so it will need to be cleaned out as well.


When cleaning out the drain pan, it may help to pour a bleach/water mixture down the drain to kill any bacteria and algae that may be growing. We recommend a 50/50 mixture of water and bleach for this task. As always, when handling bleach or other hazardous chemicals, be sure to wear goggles, gloves, and other protective gear to prevent skin irritation from contact with chemicals.


This HVAC maintenance checklist covers many of the basic A/C maintenance issues that can be easily addressed by non-experts. For major HVAC repairs, call Bergeman Plumbing & Heating at (715)376-2278 to schedule a home visit by a professional technician.



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