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5 Common Reasons Your Air Conditioner Won’t Turn On

5 Reasons Why Your Air Conditioner Won't Turn On

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It’s easy to take cool, comfortable air for granted, but when your air conditioner won’t turn on, it may seem like the end of the world. Don’t panic, though — there may be a practical explanation for why your air conditioner isn’t working.

Below, we cover five common reasons your AC unit might not turn on, as well as offer some helpful advice. Let’s dive in!

1. Thermostat Malfunctions

The thermostat is an essential component of your air conditioning system. It allows you to switch the unit on and off, turn the temperature up and down, and adjust settings as desired. Unfortunately, these functions become less reliable when there are communication errors between the thermostat and your AC unit.

Before freaking out because your air conditioner won’t turn on, check the thermostat. Press the “On” button if the screen is blank, or change the batteries and try again. If that doesn’t solve the issue, we recommend calling a certified technician to inspect the system, as it may need to be replaced or reconfigured.

2. Power Loss

Air conditioners rely on electricity to maintain a comfortable indoor climate. That said, your air conditioner won’t turn on if you experience a power outage or a blown fuse. Even if the electricity automatically returns to the rest of your home, your air conditioning system may not turn back on.

Always check the power source before jumping to conclusions and calling an AC repair company for emergency repair service. Usually, the solution will have something to do with one of the following problems:

  • Power surges
  • Bad capacitors
  • Unplugged condenser units
  • Circuit breaker tripping

3. Overheating Due to Filtration Issues

Air filters allow clean air to enter the system while keeping out dust, debris, pet dander, and other contaminants. However, a filter can clog over time and prevent adequate, healthy airflow. This could lead to a whole host of issues, including overheating.

The more clogged your air filters become, the harder your air conditioner has to work and the more likely it will be to overheat. Overheating can damage your system’s components and cause it to shut down permanently. For future reference, a great way to avoid this is by regularly changing your air filters.

4. AC Drain Line Clogs

Have you noticed water no longer dripping from your outdoor condenser unit? Air conditioners convert hot air from outside into cool air for your home, removing excess moisture from the system through a drain line. If water doesn’t come out of the drain line, it could mean you have a clog.

AC units have a float switch that automatically turns the system off when water in the drip pan reaches a certain level. Clogged drain lines keep the water from flowing out of the drip pan, allowing it to accumulate and activate the float switch. If you suspect a drain line clog, you may need to call in an expert to correct the problem.

5. Low AC Refrigerant

Refrigerant leaks are one of the most common AC issues you might face. Broken components, unsecured joints, corrosion, and other factors may cause refrigerant to leak inside your system. When this happens, your air conditioner won’t be able to cool your home efficiently and may shut off completely.

Never try to fix refrigerant problems yourself. A licensed professional can inspect your system thoroughly and apply the appropriate solution according to the Environmental Protection Agency’s strict guidelines.

Common signs of an AC refrigerant leak:

  • Poor cooling
  • Humid Air
  • Frozen evaporator coils
  • Water Leaks
  • Long cooling cycles
  • Hissing or Bubbling noises
  • Rising energy bills

Still Not Working? Schedule an AC Repair Service

Is your air conditioner still not turning on?

Don’t worry — CTR Services offers top-quality AC repair and maintenance, where we can identify problems quickly and implement the right solution for long-term results.

If your air conditioner won’t turn on, get in touch with our expert HVAC technicians today at (254) 545-1759 to schedule fast, reliable, and affordable AC services!

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