It’s the middle of summer in De Pere, and your AC won’t turn on. Now what? You could feel miserably warm quickly if you don’t find a solution to your air conditioning issue soon. Plenty of things could keep your AC from turning on, and If you cannot troubleshoot the problem alone, count on Healthy Home Heating & Cooling LLC to get you going again. Our expert HVAC technicians know all about air conditioners, making them the trusted experts to rely on when your unit fails to cool your home. Let’s learn about some of the most common issues you could experience when your air conditioner fails to cool.

Thermostat Malfunction

When you have a problem with your HVAC system, you should almost always look at the thermostat first. This device controls your air conditioner and may be causing the unit to fail.

Be sure your thermostat is on. If the screen is blank, you may need new batteries. If new batteries don’t do the trick, you’ll need a new thermostat. Our technicians can set you up with a new unit quickly to restore cool air in your home.

If the thermostat is working, ensure it is set to “cool” and is set to a temperature lower than the room in which it is installed. If the temperature on the thermostat is set too high, the AC won’t kick on. If the device is set on “fan” or “heat,” your AC will not run.

Clogged Air Filter

You should change your air filter at least once every three months. The air filter blocks dust and debris from your forced air and will become dirty and clogged over time. If your air filter is clogged, it could cause your AC coils to freeze due to overwork. If your air conditioner is not working, check the air filter and replace it if needed.

Unit is Frozen

Air conditioners freeze from time to time. There are various reasons for this to happen. Your unit will not work if it is frozen. Check for ice buildup on or inside the unit. If the AC is frozen, shut it off until the ice thaws. Attempting to run the unit while frozen could damage the mechanical components and result in insufficient cooling. If your unit freezes frequently, call us for a technician to inspect for a deeper issue. Your unit should typically not freeze over. If it does, there may be something else going on that our technicians can repair.

Power Supply Issues

Your air conditioner requires a proper electrical connection. If there is a power supply issue, your unit will not turn on. Power supply problems range from simple fixes to complex issues.

Check your circuit breaker or fuse box. Look for a tripped breaker or blown fuse. If this happens frequently, talk to an HVAC technician about fixing the underlying issue. You may have too much of a load on a single circuit, causing the breaker to trip or fuse to blow often. This situation could be dangerous if left to continue.

Check the indoor and outdoor shutoff switches. Your HVAC unit has a switch that looks just like a light switch. This indoor switch is near the indoor HVAC unit. It might be flipped on accident considering it looks like an ordinary light switch. To prevent this from happening, it is a good idea to label the switch. The outdoor switch is near the AC unit. It may have been switched off if you’ve recently had work done on the air conditioner. When investigating power supply issues, ensure that both switches are in the “on” position.

For more complex electrical connection issues, contact your technician. Investigating electrical problems can be dangerous for an untrained person. Improperly handling electricity could result in further damage to your air conditioner. You could also cause injury to yourself which includes shocks, electrocution, and burns. In severe cases, you could ignite a fire that damages your home and belongings. Leave the heavy and dangerous work to our professional HVAC technicians, who carry proper equipment and have specialized training.

Clogged Condensate Drain

The condensate drain is a line that allows moisture to drain away from your cooling unit. Your AC removes heat and humidity from the air, and when the condensate drain clogs with debris, the unit can retain water. It will not power on, and your home will feel warm and muggy. If your condensate drain is blocked, your technician will remove the obstruction and clear the line. You may also need repairs to fix any water damage to the unit.

Float Switch or Wet Switch

Your cooling unit is equipped with a float or wet switch, sometimes referred to as the condensate overflow switch. This switch sits in the drip pan of your horizontal unit. When water fills the drip pan beyond a safe level, the switch gets wet and automatically shuts down your unit as a safety precaution. This excess water indicates a clog somewhere in your drain line. Once the wet switch is triggered, you’ll need a professional HVAC technician to drain your line and remove any blockages. You can empty the drip pan yourself, but you’ll still need help resolving the underlying issue that caused your unit to retain excess water.

Faulty Capacitor

The capacitor in your AC is the part that charges the motor. The capacitor stores and releases energy to your fan and motor, allowing the unit to run. If the capacitor fails, your unit will not run. A faulty capacitor is common in older units and may indicate the need for a new air conditioner. Your HVAC technician can test the capacitor with a multimeter. Due to electrical currents, do not attempt to test your capacitor yourself.

Other Mechanical Failures

Your air conditioner is a large machine with many working parts. Any one of the mechanical components of your unit could fail, causing the AC not to work. If you’ve checked your thermostat and power supply and still cannot turn your unit on, you’ll need help from one of our expert technicians. Because of the complexity of the unit, you should never try to take it apart and diagnose issues on your own. Our technicians have various tools and equipment to troubleshoot your AC issue, diagnosing the problem quickly and safely. We have years of experience in the HVAC industry and understand the inner workings of air conditioners extensively.

Summer in De Pere can be frustrating without your air conditioner. If your AC doesn’t turn on, count on our dedicated technicians at Healthy Home Heating & Cooling LLC to get you running again quickly. We work hard to provide the highest customer satisfaction possible. That means attention to detail, prompt service, and a mess-free work area.

If you’re having problems running your air conditioner in De Pere, call Healthy Home Heating & Cooling LLC for an expert technician you can count on.

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