The air conditioner may work well until it becomes extremely hot, where it should be working best. The air conditioner, whose functionality is hindered by inadequate flow of air or dirty coils, can simply stop working when it is hot. Sadly enough, many people become aware of such problems only when it becomes hard for them to feel comfortable inside their house.

Predictive maintenance can be scheduled with AC services, but still, there are some problems that will not be evident at first sight, as they do not affect the cooling ability of the air conditioner.

1. Partially Blocked Air Filters

One of the most common parts that people forget to change in their air conditioners is the air filters. Though they may seem to be simple, they play a critical role in regulating airflow and cooling.

The filters are bound to get blocked by dust, animal hair, and other particles in the air. That is why there will be less airflow to the evaporator coils, and the AC will have to work harder to regulate the temperature.

An inadequate filter may cause longer operation periods, increased energy consumption, decreased cooling capacity, and added stress to the equipment. Homeowners must regularly check their filters and change them or clean them according to the manufacturer’s recommendations.

2. Dirty Evaporator and Condenser Coils

The coils of air conditioning systems exchange heat, which is very important for the process of cooling. However, dust and other particles tend to accumulate over time and become an obstacle to efficient heat exchange.

In particular, the evaporator coil is designed for heat removal from the indoor air, whereas the outdoor condenser serves to dissipate heat into the outside air. If one of them becomes clogged with dirt, then there will not be enough heat dissipation or removal in order to keep the right temperature inside the building.

If professional AC servicing is required, then the coils need to be checked by the technician and cleaned if they are dirty. Moreover, it is also very important not to allow the debris to accumulate near the outdoor AC unit.

3. Clogged Condensate Drain Lines

The moisture content of indoor air is condensed as part of the cooling process of the air conditioner. The condensation fills the drain pan and drains off using the condensate drain line. Organisms such as algae and dirt can build up and clog the drain.

In such instances, moisture will accumulate at the indoor unit of the air conditioner, trigger a safety switch or even cause stains in the surroundings. Some people see this as a plumbing issue, or they simply ignore some of the water near the machine. Nevertheless, the recurring water should be fixed.

Part of regular maintenance is checking the drain pan and ensuring that there is proper drainage from the drainage line. This is meant to prevent any indoor air quality problems associated with the moisture.

4. Low Refrigerant Levels and Undetected Leaks

Refrigerant moves throughout the air conditioning system and absorbs and gives off heat in order to produce cooling. Inadequate charge may lead to problems in maintaining the necessary temperature levels inside the building.

Indications of insufficient cooling include ice formation in the refrigerant lines and/or the evaporator coils, excessively long run times, and inadequate cooling. When there is a leak, it will persist even when the AC system is not functioning correctly. Adding more refrigerant without addressing the underlying issue will not fix the problem.

This must be done by a trained HVAC professional, who will identify the location of the leak, fix it, and recharge the system accordingly. This is also recommended by the US Environmental Protection Agency.

5. Worn Electrical Connections and Capacitors

Electrical components will only be taken seriously when there is no power or when the air conditioner unexpectedly stops working.

Capacitors control the operation of the motors that power the startup and operation of the system; contactors, wires and control components control the operation of the system. Loose connections might occur, and wear and tear might take place during the cycle of operation.

Problems in the outdoor fan or the compressor can arise when the capacitor is broken. The problems also include clicks, unusual functioning of the AC unit, and sudden power offs. These parts have to be checked by the AC technician. The electrical panels should not be touched because they are extremely hazardous.

6. Hidden Air Duct Leaks and Insulation Problems

Even though the air conditioning system has the capacity to cool down the air sufficiently, it may be unable to distribute the cooled air adequately across the house.

The leakage and inadequate insulation of the ducts may cause the air to leak into unwanted areas such as crawlspaces and attics, which do not need heating or cooling. This way, it will assist in lowering the cooling load on the rooms that need to be conditioned.

Homeowners might notice that some rooms are either cooler or hotter than the other rooms in the house. There is also the possibility that air does not come out of some vents or that even with proper settings, the rooms remain uncomfortable. A professional inspection will be helpful for finding out leaks, insulation issues, separation of duct sections, and obstructions.

7. Thermostat and System Control Issues

Not all the problems with the cooling process may be associated with the internal components of the air conditioner. Sometimes, there might be an issue with the thermostat itself and its settings.

The timing of the system’s activation and deactivation can be dependent on scheduling, positioning of the thermostat, malfunctioning of sensors and readings provided by the thermostat. For example, the thermostat might get erroneous readings in the case where it is exposed directly to the sun rays.

It is vital for homeowners to make sure that they adjust the thermostat and battery properly.

Conclusion

A small issue can result in major problems when there is heavy usage of the air conditioner. A homeowner can avoid all sorts of surprises with unexpected equipment failures and enjoy their desired comfort levels in the home with regular filter checkups, and inspection and timely repairs of the equipment.

Riley Heat & Air provides AC services in Maryland and Washington, DC. A seasonal inspection will go a long way in identifying any issues and making sure that your system works optimally in the hot summer season.