Does it sometimes feel like things happen at the worst time? For example, will your A/C breakdown in the middle of a heatwave? Something to consider – the breakdown may have happened sooner, but only became apparent when:
- used for the first time in the summer
- on a day when temperatures soar, and relief is acutely needed
In our experience, we observe that the six main causes of A/C breakdown are:
- Refrigerant Leaks
- Blocked Drains
- Frozen Coils
- Clogged Coils
- Fan Issues
- Unit needs to be replaced due to being past its productive life
Refrigerant Leaks
The copper tubes inside your AC’s condenser coils can become worn. This will result in refrigerant leakage. When your AC does not have enough refrigerant, it will not consistently produce cool air.
It is also possible that your system was not properly charged at the outset. A refrigerant starved HVAC will work harder to cool air and thus wear down quicker. Have a trained technician repair leaks or correct undercharging. Refrigerants need to be properly handled to reduce environmental harm.
Blocked Drains
Your AC absorbs moisture from the air. The moisture is drawn into the drain line, channels towards a pan, and then departs down the drain. If either the drain line, pan, or drain becomes clogged, the moisture cannot exit normally.
This can cause the moisture to go back upstream resulting in poor cooling. Alternatively, water can leak, causing damage to the ceilings or walls adjacent to your AC.
Fan Issues
Home AC systems typically have two fans:
- one removes the warm air in your home by pushing it over the condenser coils
- the other blows cool air over the evaporator coils
If either of these fans fail, the result will be uneven cooling in the home, as well as the system cycling on and off frequently.
Frozen Coils
Low refrigerants, clogged filters, faulty air handlers, closed-off air registers or inaccurate thermostat can result in frozen coils. If the air around the evaporator coils is too cold, it could lead to ice buildup and an underperforming AC.
Clogged Coils
Your exterior AC unit has condenser coils. Dust, grime, and debris can build up on these coils. If the coils become blocked, it will reduce heat transfer effectiveness. Your AC will have to work harder, and it will wear out sooner.
Obsolescence
The useful life of most HVAC systems is 10 – 15 years. At that point, parts are worn or simply not as effective as newer technology on the market. Additionally, an experienced HVAC company can provide advice as to when upgrading your system makes sense.
High efficiency units can save 20% or more on energy costs. The savings in energy costs can cover the acquisition costs of a new unit in a few years. Poor equipment, leaky ductwork or dysfunctional thermostat can result in your home being too hot in the summer and not warm enough in the winter.
HVAC Maintenance
One safeguard against these typical breakdowns is routine maintenance. An annual checkup and air duct cleaning ensure peak operation of air conditioning systems and provides alerts to any issues. Being proactive is the best way to avoid suffering through lukewarm air conditioning or sudden breakdowns.
Thermodynamix has provided professional HVAC service in Westchester County for over two decades. Beyond our initial office location, we serve Rockland, Putnam, and Fairfield Counties. If you have any questions about HVAC repair, installation, or maintenance, call us on 914-909-4108.
