3 Reasons Why Your Outside AC Unit Is Not Turning On

Are you trying to figure out why your AC unit outside is not turning on?

The outside heat can be intense and you probably don’t want to go anymore without proper airflow.

Luckily, there are a few simple reasons why this might happen. If you know what the common reasons are, you can head in the right direction.

Keep reading to learn about the most common reasons for your outside AC unit not turning on.

1. Power Problems

One of the most common reasons for your AC not cooling upstairs is due to power issues. If your unit isn’t receiving the necessary electricity, it simply won’t turn on. Below are a few things that you should check.

Tripped Circuit Breaker

First, take a trip to your electrical panel and see if the circuit breaker for your HVAC unit has tripped. A tripped breaker means it has shut off to prevent overloading.

Reset it by flipping the switch to the “ON” position. If it keeps tripping, there may be a larger electrical problem that requires professional attention.

Blown Fuse

Some AC units have a fuse in the outdoor unit that can blow. Check the fuse and replace it if necessary. Remember to turn off the power before handling fuses to prevent electrical shocks.

Disconnect Switch

Ensure that the disconnect switch, typically located near the outdoor unit, is in the “ON” position. Sometimes, it can accidentally get turned off.

2. Thermostat Troubles

Your thermostat serves as the control center for your AC system. If it’s not working correctly, your AC unit won’t receive the signal to start cooling your home. Here’s what to consider:

Incorrect Temperature Setting

Check if your thermostat is set to a temperature lower than the current room temperature. If it’s set too high, your AC won’t turn on.

Dead Batteries

Many thermostats operate on batteries. If the batteries are dead, your thermostat won’t function. Replace them with fresh ones and see if that solves the problem.

Wiring Issues

Sometimes, thermostat wires can become loose or damaged. Inspect the wires and connections to ensure everything is secure. If you’re unsure, it’s best to consult a professional.

3. Capacitor Concerns

Inside your AC unit, there’s a component called a capacitor. This little device provides the initial jolt of electricity needed to start the compressor and fan motors.

When it fails, your AC unit won’t turn on. Below are the different signs to look out for.

Weird Sounds

If your AC unit makes unusual buzzing or humming noises but doesn’t start, it could be a faulty capacitor. If this is the case, you should consider getting in touch with a technician.

Visual Inspection

Air conditioner capacitors can sometimes bulge or leak fluid when they’re failing. If you notice any abnormalities, it’s time for a replacement.

Professional Diagnosis

If you suspect a capacitor issue, it’s best to call an HVAC technician. They have the tools and expertise to safely diagnose and replace capacitors.

Outside AC Unit Not Turning On – Knowing the Culprit

Identifying the culprit behind your outside AC unit not turning on is essential to resolve the issue and enjoy a cool and comfortable home. Regardless of the reason, it’s important to take action promptly and get your AC unit up and running efficiently.

Don’t hesitate to contact a trusted HVAC technician for assistance. Take care of your AC unit and it will take care of you. Schedule a maintenance check today!

If you have found this useful, feel free to read some of our other related articles.

Leave a Reply

Your email address will not be published. Required fields are marked *