Why Does My AC Keep Turning Off? These Are the Most Likely Reasons 

Every time your air conditioner starts up, it should run for several minutes before turning off again. The complete process is called a cooling cycle, and it’s important to how your HVAC system provides comfortable indoor temperatures. So if you’ve noticed your AC keeps turning off, comfort can be tougher to maintain.

There are different reasons why your air conditioner keeps shutting off, but one of the most common reasons 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 switching 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 share a few more separate reasons your cooling equipment keeps shutting down.

Your Air Conditioner May Be Short Cycling

When an air conditioner short cycles, it turns off before reaching the desired temperature. It may not be long before the thermostat recognizes this and instructs the AC to run again. But since there’s a problem, the air conditioner will continue to short cycle. This will extend the time needed to cool your home while placing extra strain on important components. If left alone too long, short cycling might even lead to premature system failure.

5 Problems That Can Lead to Your Air Conditioner Short Cycling

Another tedious part 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 issue. During air conditioner repair, a technician will check for a few of the most common things to start narrowing down the root cause.

    1. Overheating: Too much heat can ruin components inside your air conditioner. Safety features will often detect overheating and shut the AC off to protect sensitive parts. But if the original problem hasn’t been resolved, this process just starts over again.
    1. Poor Airflow: Your HVAC system needs enough airflow to function at safe, optimal temperatures. When the air filter or ductwork is clogged, the lack of circulation could] lead to overheating, which means short cycling.
    1. Wrong AC Sizing: HVAC equipment should be properly “sized” for your home. This means that the power of your air conditioner suits the cooling needs of your home. An air conditioning system that’s too large will pump out cool air too fast, tricking the system into switching off early before the entire house is cooled down.
    1. Dirty Condenser Coils: This component expels the heat collected from inside your home. When the coils are too dirty, this heat could end up in the air conditioner. The high levels of heat could be enough to result in a premature shutdown.
    1. 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 trick it into thinking the temperature has been reached earlier.

Short cycling is an annoying problem ideal for the tools and knowledge of a professional technician. But there are still other reasons your air conditioner might be shutting off unexpectedly. Let’s take a look.

Some Other Reasons Your AC Keeps Switching 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 vital component applies pressure to force heat out of the refrigerant before it’s removed from your home. When the component fails, a safety switch should 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 substances 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 shuts off the AC before half of it is running underwater.

Stop Short Cycling in Its Tracks with Service Experts Heating, Air Conditioning & Plumbing

If your air conditioner is short cycling, call a professional technician with Service Experts Heating, Air Conditioning & Plumbing. They can quickly determine 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 today.

Savings For You

See All Offers Here >
Offer

$50 OFF ANY REPAIR

  • Save $50 on a Paid Service
  • Written 100% Satisfaction Guarantee
  • Plus, ask how to save an additional 15% and waive your trip charge!
print
Offer

MAKE NO PAYMENTS FOR 30 DAYS!

  • Upgrade to Worry-Free Comfort with the Advantage Program and make NO payments for 30 days!
print

© 2024 Service Experts, Service Experts Heating & Air Conditioning, and the Service Experts logo and design are registered trademarks of Service Experts LLC and used under license by SE Canada Inc. All Rights Reserved. *Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.

Chat with a Service Experts Professional