7 Common AC Issues That You Can Fix From HomeDecember 15, 2020
In the heat of the summer, it’s important to have a working AC system so you can stay comfy and cool.
If you’re experiencing AC issues, it may surprise you to learn that there are a few problems you can fix yourself without the help of a pro.
Read on for a list of seven AC problems that you can fix from home so you can enjoy the cool air without the high repair cost.
- Your AC Stops Working
There can be hundreds of reasons why your AC suddenly stops working, and you’re probably wondering how to fix my AC. Many issues are related to the thermostat itself and not the actual HVAC system, so start by looking there.
Check the overflow shutoff switch to see if it’s been set off. If a clogged drain line is detected, this switch could activate and thus kill power to the unit, or the switch itself may have simply gone bad.
Do a quick check of the thermostat and make sure that it’s getting power. Check the settings to make sure everything is correct and if it all looks good, check your fuse box to make sure the circuit breaker or fuse hasn’t blown. If the thermostat seems fine and there’s no blown fuse, it may be time to call in the pros for help.
- AC Issues: Uneven Cooling
If some of the rooms in your home are nice and comfortable but others are warm, you’re experiencing uneven cooling. In fact, some places might get extra-cold, while others take forever to even get close to your target temperature.
Make sure the warmer rooms aren’t just getting too much sunlight, which could raise the temperature unknowingly. Cover the windows with light-blocking curtains to see if that cools things down. If it’s still uneven, you may need to consider having separate cooling zones installed.
- Warm Air is Blowing Out
Air blowing from your vents that’s warm but should be cool is one of the most common AC issues. First, check to see if your filter is clogged and then change it to a new one to clear out the airway and to keep your unit running smoothly.
Next, make sure your thermostat is on the right setting and that it’s functioning as it should. Look for anything else that could be causing the warm air, such as debris blocking the unit or low levels of refrigerant. If your refrigerant is low or there’s a visible leak, it might be time for an AC professional to take a look.
- Unusual Noises
You know what your home’s AC system should sound like, so any unusual noises will likely cause a concern. High-pitched screeching sounds may indicate that your unit simply needs to be lubricated with oil, and you can probably do that yourself.
Loud slapping noises could be a result of some debris that got stuck inside the unit. However, extra-loud noises like banging, rattling, or thumping may indicate something more serious. Listen to your AC unit carefully and then investigate the cause before you call the pros.
- The AC Won’t Turn Off
Your AC system should turn off whenever the home reaches the target temperature. If it’s staying on, most issues are related directly to the thermostat itself.
Make sure your thermostat is set correctly and that it’s aimed at the right temperature. If not, it’s likely that someone else in the home changed it without your knowledge. If the settings look fine, then you should consult with a professional to take a closer look.
- Leaking Refrigerant
A whole-home AC system requires refrigerant to keep the air inside your home nice and cool. If this substance is leaking, it could mean serious problems later if you don’t correct the problem now.
In some cases, the unit’s refrigerant may just need to be recharged but in most instances, the leak should be found and fixed in order to find a permanent solution. You can find a refrigerant leak repair kit at some home improvement stores and try this method yourself. If the leak is severe, a professional may need to come out and do some soldering to fix the issue once and for all.
- Frozen Coil
Your air conditioner coil could be freezing for several reasons, and luckily, this is a problem that most homeowners can fix DIY. Some reasons that the coil might be freezing include restricted airflow from a dirty filter, low refrigerant levels, extremely low outdoor temperatures (usually at night), or a broken part.
First, turn off your AC unit and set the fan to run, usually on the “auto” setting. This should melt the ice around the coil. Check your air filter for dirt and debris, then replace it if needed.
Look for obstructions around the registers and remove them. If your AC coil is still freezing it may be due to a leak or low refrigerant, or possible damage to the refrigerant line.
Solve Your AC Problems Today
While you can’t fix all of the AC issues you may have yourself, there are some things that you can do to fix small problems on your own. Use these tips to help you troubleshoot, but remember to contact a professional if you think the issue is more complex than a simple, quick fix.
Always make sure your air filter is clean and that your thermostat is working and on the right setting to keep your AC running smoothly.
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