When it comes to staying cool during the summertime in Lafayette, your outside AC condenser not turning on becomes a big problem as it’s a critical piece of equipment. When the outside AC unit is not running, you’ll find your home can quickly become an unbearable environment. Since the condenser is responsible for lowering the temperature of the refrigerant and dispersing it inside the house, it’s important to understand what’s causing the unit to malfunction so you can get it running again. Here’s what you need to know when your AC unit is not turning on outside.

What is an AC condenser?

An AC condenser is an important part of an air conditioning system, so when your AC condenser is not turning on, it can be quite the headache. It is responsible for transferring heat from inside your home to the outside. The condenser works by exchanging air, cooling it, and then blowing the cooled air through the central air-conditioning system. The outside condenser unit consists of the fan, outdoor coil, compressor, and electric control box. The fan helps to move heat and air around, while the outdoor coil cools and condenses the refrigerant, and the compressor circulates the refrigerant. Together, these components work to keep your home cool and comfortable.

Why is my AC unit fan not spinning?

One reason your AC unit fan isn’t spinning could be a lack of power to the fan or an obstruction. Other reasons could be that the fan isn’t getting enough voltage, the fan motor is too hot, something is stuck in the fan blades, or the fan belt needs to be replaced.

Why is my AC unit not turning on outside?

Common reasons that your AC unit is not turning on outside could be that something has tripped the circuit breaker, something is blocking the fan’s airflow, or the condensing unit is damaged. Other potential issues could be that the thermostat isn’t set correctly or the compressor could be malfunctioning. If your outside AC unit fan is not running, but the inside unit is, we recommend that you contact a professional to take a look.

Why is my outside AC unit fan not running while the inside is?

If your inside unit is working, but the outside AC unit fan isn’t running, there could be a few potential causes. To diagnose the problem, first, check the circuit breaker, then inspect the condensing unit for any visible damage, before finally checking if the fan’s airflow is blocked. Other possible issues are that the belt that drives the fan may need to be changed, the fan is frozen due to a lack of lubrication, or the fan motor is bad. If you’re still struggling to find the issue, it’s best to contact a professional who will be able to properly diagnose and repair your AC unit.

Quick Fixes – Try a Quick Reset

Turn off both the indoor and outdoor units at the breaker. Wait 5-10 minutes, then turn on the outside unit. After waiting another 5 minutes, turn on the inside unit. This can sometimes reset the system and resolve a temporary glitch.

Another tip is to check the disconnect switch near the outdoor unit to ensure it’s in the ‘on’ position.

Troubleshooting when your outside AC unit isn’t working

When your unit’s fan isn’t spinning and the outside AC unit is not running, you can try a few different steps to troubleshoot the issue. If you can’t get the AC unit fan spinning or the outside unit turning on, contact a professional to come and take a look. With proper repair and ongoing maintenance, your AC unit should be working properly and running smoothly in no time.

1. Check the circuit breaker

One of the main reasons an AC condenser not turning on occurs, is due to a tripped circuit breaker. A circuit breaker is like a safety switch for your home’s electricity. It flips off the power to protect the system if it detects a problem, like an overloaded motor or a short.

To check it, just go find your circuit breaker box. Look for a switch that’s in the middle position, and there you have the tripped one. All you have to do is push it all the way to the off position first, and then flip it back to on. If your AC kicks back on, you’re good to go.

2. Check the capacitor

If your AC unit is not turning on outside after you’ve checked the breaker, it could be a bad capacitor. This is a small, cylindrical part inside the outdoor unit that gives the fan and compressor motors the jolt of electricity they need to start up.

Sometimes a bad capacitor will look puffy or swollen on top (like rounded instead of flat), but a lot of the time it looks totally normal. While the part itself isn’t expensive, it holds a pretty serious electrical charge, even when the power is off. For your own safety, you should always have a pro handle this part of the repair. They’ll have the tools and training to test and replace it without getting a dangerous shock.

3. Clear any blockages blocking the fan’s airflow

Another possible problem that is causing the issue with your outside AC unit not running is that there may be something blocking the fan’s airflow. If it’s clogged with dirt, leaves, dust, or other debris, the cooling effect won’t be efficient and your home won’t be able to cool down properly. You can clear the fan of any blockages if you’re comfortable doing so, or you can contact a professional to take a look. It’s also possible that the fan simply isn’t running because the motor is bad, the fan is driven by a belt that needs to be changed, or the fan is frozen due to a lack of lubrication.

4. Check the condensing unit itself for any visible damage

You’ll also want to check the condensing unit itself for any visible damage. If it is rusted, corroded, or shows any other signs of physical damage, you’ll need to contact a professional. They’ll be able to determine if the condensing unit needs to be replaced or repaired.

5. Check the thermostat

One last item to check if your outside unit isn’t working is the thermostat. You should check if it’s been set to the correct temperature and also make sure it’s set to “cool”. If the AC settings are not right, it won’t turn on. You can also check if the batteries in the thermostat are fresh and replace them if needed.

6. Check the coolant (have a professional do this)

When your outside AC unit is not running, one last consideration could be low coolant. While a lack of refrigerant (often called coolant or Freon) will not typically prevent the outdoor unit from turning on, it can severely impact its ability to cool the house. Coolant gets tricky and can be potentially dangerous. If you suspect a refrigerant leak, it’s a job for a trained professional who can safely handle, repair, and recharge the system.

These simple steps have helped many homeowners, and it’s worth a try before calling for service. At the end of the day, we’re here if the DIY project turns into a headache (or hazard – please be safe).

Call Lee’s AC to fix your outside unit!

If you’ve tried all of the above options and are still having problems with your AC condenser not turning on or your outside AC unit not running, it may be a good idea to contact a professional. They will be able to diagnose the issue and come up with the best solution – either fixing the existing outside unit or replacing it, if need be. A professional will also be able to properly troubleshoot other issues that you may not know about, such as clogged refrigerant lines, a misaligned fan, or a malfunctioning compressor.

At Lee’s AC in Lafayette, we are proud to offer unparalleled customer service and AC repairs. Our team of experienced, highly skilled AC technicians is dedicated to providing reliable, cost-efficient solutions to your cooling problems. If your outside unit isn’t working, reach out to our team today!