Key Points
- Some problems with AC condensers that require professional servicing are poor cooling results, a condenser that won’t power on, frozen coils, and electrical fires.
- The best preventative maintenance you can do for your air conditioner is to regularly replace the air filter.
If your air conditioner goes out, do you know which HVAC parts to check? Especially if you have a central heating and air split system, the problem could be in several places. You could have issues with your ducts or dirty air filters. You might even have more severe issues with the air handler or the air condenser. That’s why it’s important to know what each component of your HVAC system is, how it works, and what to do if it’s broken.
Today, we’re going to talk a little more about troubleshooting a malfunctioning air conditioner condenser. If yours isn’t working properly, keep reading for common condenser problems and their solutions.
What Is an Air Conditioner Condenser?
The condenser is a critical component of your home heating and cooling system. Essentially, air conditioner condensers act as heat exchangers. They typically house refrigerant–but not always, as is the case for evaporative condensers– which is the active ingredient that allows air to be cooled. Condensers themselves are home to several parts, which you will need to be familiar with should the condenser stop working.
- Condenser Outdoor Coil
- Coil Guard
- Condenser Fan
- Fan Motor
- Condenser Scroll Compressor
- Cabinet
Pro Tip: To learn more, check out our expert resource on air conditioner condensers.
Troubleshooting a Malfunctioning AC Condenser
If you’ve isolated the condenser as the source of your AC problems, you’ve already won half the battle. Let’s go through some common issues with the AC condenser.
My Air Conditioner Condenser Is Not Producing Cold Air
An air conditioner condenser is supposed to keep you cool. When you feel a decided lack of cold air coming out of your vents, but the condenser is still running, there are a couple of things that might be going on. The biggest reason could be a lack of refrigerant. An air conditioner condenser and evaporator require refrigerant to move heat out of your house. A condenser coil with a leak and low refrigerant won't do the job. It might keep blowing air, but that air won't be the temperature you need it to be. If you suspect a leak or another issue with refrigerant, call in an HVAC professional. They will either service your system and replace broken parts, or they’ll help you recharge your refrigerant.
Pro Tip: Regular HVAC maintenance will prevent many of these problems, or catch them before inefficiency translates into lost money.
My Air Conditioner Condenser Coil is Frozen
Ice should not build up on an air conditioner condenser. When you find it, this is a big sign that something is wrong. There are several reasons you might have a frozen AC, including:
- Decreased Airflow
- Mechanical Issues with the Fan or Other Components
- Refrigerant Pressure
- Outdoor Temperatures Too Low
- Dirty Coils
My Air Conditioner Condenser is Literally on Fire
Okay, well, this is probably the most severe and immediate problem you can have. And it means something electrical inside the air conditioner condenser got so hot that it burst into flames.
Air Conditioner Condenser Solutions
If you've got no cold air, a condenser that won't turn, a frozen coil, or a condenser that is literally on fire, you need to call a service tech. You should also call the fire department for that last one. But seriously, call a service technician. Repairing an air conditioner condenser requires specialized tools and training that most people don't have. Most folks can't recharge a unit with refrigerant, replace a compressor, service the motor, etc. Plus, trying to make repairs on your own risks voiding your warranty in most situations, so, as we’ve been recommending, call a professional that can.
Air Conditioner Condenser Problem Prevention
The main thing you can do is to change your air filter regularly. A lot of the aforementioned problems are caused by dirt and debris that build up on the coils or clog the compressor or make trouble somewhere else. You can avoid a lot of problems just by regularly checking and inspecting the air filter. If you want to go above and beyond, you can also keep your condenser clean of yard debris. When you find grass and twigs and junk in the coils, remove it. Be careful not to bend the fins while doing so. You can even hose these coils off to remove any accumulated dust during a long hot summer. But, and we insist, leave the tough stuff to the pros.
How Is Your Air Conditioner Condenser Working?
Quick, now, go outside and check on your air conditioner condenser. If there’s debris buildup around the cabinet or leaves that have made their way inside, carefully and safely give it a good cleaning. If you haven’t had your condenser serviced in a while (or maybe ever), consider giving an HVAC service technician a call. Keeping your condenser cleaned and maintenanced isn’t just a matter of keeping your unit running: it’s a matter of saving you money on energy bills. Units that aren’t maintained suffer from decreased efficiency, which directly translates to more money spent on energy bills every month. Save yourself time, energy, and money now by giving your condenser a quick once-over.
