Why Does My AC Keep Turning Off? These Are the Most Likely Reasons
Every time your air conditioner turns on, it should run for a while minutes before shutting down again. The entire process is known as a cooling cycle, and it’s central to how your HVAC system generates comfortable indoor temperatures. So if you’ve noticed your AC keeps switching off, comfort can be tougher to maintain.
There are many reasons why your air conditioner keeps turning off, but one of the most common culprits is short cycling. This irritating HVAC problem involves cooling cycles that aren’t long enough to make efficient use of your air conditioner. It may keep turning off before your home has a chance to cool down. We’ll review a few details of what short cycling is and where it comes from. Then, we’ll offer a few more separate reasons your cooling equipment keeps turning off.
Your Air Conditioner Could Be Short Cycling
When an air conditioner short cycles, it switches off before reaching the desired temperature. It may not be long before the thermostat realizes this and instructs the AC to start up again. But since there’s a problem, the air conditioner will continue to short cycle. This may extend the time necessary to cool your home while putting extra strain on important components. If left alone too long, short cycling can even lead to premature system failure.
5 Problems That May Lead to Your Air Conditioner Short Cycling
Another frustrating aspect of short cycling is the number of potential causes. In general, a lot of short-cycling issues can be traced back to overheating. But the excess heat could just be the symptom of another unknown problem. During air conditioner repair, a technician will look for a few of the most common things to start narrowing down the root cause.
- Overheating: Excessive heat can ruin components inside your air conditioner. Safety features should detect overheating and shut the AC off to protect key parts. But if the original problem hasn’t been addressed, this process just starts over again.
- Poor Airflow: Your HVAC system needs steady airflow to run at safe, optimal temperatures. When the air filter or ductwork is clogged, the lack of circulation could47] lead to overheating, which means short cycling.
- Wrong AC Sizing: HVAC equipment should be appropriately “sized” for your home. This means that the power of your air conditioner matches the cooling needs of your home. An air conditioning system that’s too powerful will dump cool air too quickly, tricking the system into turning off early before the entire house is cooled down.
- Dirty Condenser Coils: This component removes the heat collected from inside your home. When the coils are too dirty, this heat can end up in the air conditioner. The high levels of heat could be enough to result in a premature shutdown.
- Thermostat location: The thermostat should be in a convenient location away from a vent or the HVAC equipment itself. This ensures every room of the house has cooling for long enough to reach the set temperature. Placing your thermostat too close to cool air can fool it into thinking the temperature has been reached earlier.
Short cycling is a complicated problem ideal for the tools and knowledge of a professional technician. But there are still other reasons your air conditioner may be shutting off unexpectedly. Let’s take a look.
Some Other Reasons Your AC Keeps Turning Off
Electrical Malfunction: Any number of malfunctions with the wiring or an electrical switch can lead to consistent shutdowns. Maybe the wiring is old or damaged, but electrical problems should receive professional care for a prompt, safe solution.
Compressor Failure: This crucial component uses pressure to force heat out of the refrigerant before it’s vented out from your home. When the component fails, a safety switch will recognize the pressure change and direct the air conditioner to shut off.
Refrigerant Leak: Your refrigerant absorbs and releases heat, making it one of the most important parts in your HVAC system. A leak can be catastrophic, as the coils designed to hold the coolant are expensive to replace. It’s important to move quickly if you suspect a leak to avoid premature air conditioning replacement.
Clogged Condensate Line: When humidity is condensed into moisture during the cooling process, the condensate line safely drains it away. When the line or drain pan is clogged up, a float switch stops the AC before half of it is running underwater.
If your air conditioner is short cycling, call a professional technician with Peachtree Service Experts. They can quickly identify the root cause, working toward a solution that protects the rest of your HVAC system from the wear and tear of short cycling. To schedule an appointment or request an appointment, call 678-235-9699 today.