With average summer highs routinely in the mid-80s, AC problems in summer can quickly turn your Abington home into an uncomfortable swamp. We’ll explore some of the most common causes of your AC blowing warm air, troubleshooting tips, and who to call for professional air conditioner services in Abington, PA.
Top Reasons Your AC Is Blowing Hot Instead of Cold
Wondering why your AC isn’t cooling? These common issues could be the culprit.
Thermostat Settings Issues
If you’re having trouble with your AC temperature, the easiest place to start is with your thermostat. Check that it’s set to the right temperature and has full power. For some models, this might include checking or replacing the batteries.
If everything looks correct, the culprit could be the location of your thermostat. Thermostats placed directly in front of fans and air vents, beside windows and doors, or in direct sunlight can all provide faulty measurements that trigger your HVAC system. For example, if your thermostat is in front of the AC vent, it can read the room as being colder than it really is, signaling your AC to turn off early.
Dirty or Clogged Air Filters
Dirty air filters in your AC are one of the most common causes of air conditioner problems. When filters become dirty or clogged, your AC has to work harder to push air through the system. This increases wear and tear and can cause the system to shut off to prevent overheating.
Energy Star recommends checking your air filters at least once a month and replacing them every three months or as recommended by the manufacturer. If you live in a home with pets or smokers, or if there’s a lot of dust, dirt, pollen, or other contaminants in your area, you may want to change your filters more frequently.
Refrigerant Leaks
Refrigerants facilitate the heat transfer process in your AC, moving heat from inside your home and depositing it outside. When everything’s working properly, the level of refrigerant in the system stays the same. However, a refrigerant leak can cause levels to drop, meaning your AC doesn’t have enough fluid to move heat out of your home. Common refrigerant leak symptoms include your air conditioner blowing hot air, rising energy bills, ice buildup around your AC, and a chemical smell.
In addition to causing your AC to blow warm air, refrigerant leaks are a health hazard. If you notice liquid pooling on or around your AC, or if you smell a sweet, chemical odor from your AC, turn off the system immediately. Evacuate the area, open the windows, and call a professional for emergency AC repair.
Electrical or Compressor Issues
The compressor is responsible for circulating refrigerant through your AC, keeping the cooling process flowing smoothly. If this component breaks down, your AC can’t cool anymore and may start blowing warm air.
Always call a pro for any electrical or compressor issues. Attempting DIY fixes not only risks breaking the system further, but it can also pose a health hazard.
Frozen Evaporator Coils
In most systems, your AC evaporator coil is found inside the air handler unit. When evaporator coils freeze, they prevent your AC from properly moving heat out of your home.
Coils can freeze over due to lack of airflow or low refrigerant levels, meaning a frozen evaporator coil is often a secondary problem. Turning off the AC and allowing the coil to thaw can get rid of the ice buildup, but you’ll also need to check your filters or call a pro to inspect the refrigerant.
AC Tip: If your air conditioner is blowing warm air, it’s best to turn it off. Continuing to run the system can wear out key components and lead to costly repairs. Depending on the cause of the issue, running a broken air conditioner may also pose a health hazard or cause a fire.
Preventative AC Maintenance Tips to Avoid Warm Air Issues
Preventative maintenance is key to prolonging the life of your air conditioner, avoiding repairs, and keeping your home cool and comfortable. Try the following Philadelphia AC maintenance tips to keep your system running smoothly:
- Check air filters monthly and replace filters at least every three months.
- Schedule annual AC maintenance to clean and tune-up your unit. It’s recommended to book maintenance in the spring before the heavy-use season to get your AC ready for summer.
- Clean the outdoor unit, removing any leaves and other debris from around the vents.
- Check thermostat settings and aim for an energy-efficient setting to reduce HVAC wear and tear. Smart thermostats can help maintain efficient temperatures while you’re away without compromising comfort.
Your HVAC pro will also come prepared with a professional AC maintenance task list. This typically includes lubricating all moving parts, checking refrigerant levels, cleaning the condensate drain, and checking electrical components.
When to Call for Professional AC Repair in Philadelphia
If you’re worried about AC issues, you can troubleshoot by replacing the air filters and checking your thermostat. However, if your thermostat is set correctly but your AC still isn’t cooling, it’s time to call for professional AC repairs. At Chud Cooling & Heating, we serve the greater Abington area to deliver expert HVAC repairs near you.
Schedule AC Service with Chud Cooling & Heating Today
From emergency AC repairs to preventative maintenance, we offer expert knowledge and great customer service to keep your AC running smoothly. Contact us today to book your next appointment and get your home ready for summer.