It’s frustrating to hear the breaker click and feel warm air as your AC shuts down. It may seem like a fluke, but AC breaker trips are a warning sign worth paying attention to, especially before peak summer heat.
An electrician can help identify the cause of your AC problems and provide common sense solutions.
Common Reasons an AC Trips the Breaker
A breaker is a failsafe that cuts off electricity, or ‘trips’, when it detects unusually high power draw. A breaker trip protects you and your household from electrical fire and panel damage. Flipping the breaker back on repeatedly circumvents this safety process and can also damage your AC unit.
The best solution is to identify the cause of the power overload and address it. These are the most common reasons why your AC is not cooling.
1. Electrical Overload
Your AC is tripping the breaker by drawing more power than the breaker can safely handle. This often happens during very hot weather when the system is working harder to cool your home. It can also happen when you have too many large appliances on one circuit.
Consider moving some devices to another circuit. If the breaker trips again, you have a different problem on your hands.
2. Dirty Filters and Failing Parts
Clogged air filters restrict airflow, forcing motors to work harder, and failing fan motors force the system to overwork. You may need AC repair, not electrical services. Routine maintenance through an HVAC maintenance agreement can also help catch these issues before they lead to breaker trips or system strain.
3. Short Circuits in Motor Windings
These short circuits occur when the insulation between wire coils breaks down, creating an unintended electrical path. When a short occurs, the motor draws excessive current, tripping the breaker.
This can be caused by:
- Moisture
- Overheating
- Poor ventilation
- Physical damage
- Manufacturing defects
4. Aging Equipment
Nothing has to be damaged or dirty for your AC to draw more power than normal. Old or worn components tend to draw excess power. The typical wear and tear forces your AC to work harder and use more power year after year.
Consider replacing your AC if it’s more than 10 years old.
5. Ground Faults
A ground fault is an electrical “leak” that occurs when an energized wire comes into contact with a grounded metal surface inside the AC unit. It’s usually caused by damage or moisture, and these faults can trip the breaker instantly.
They are especially dangerous because they can energize metal components, creating a shock hazard.
What You Should Not Ignore
Do not continue flipping the breaker back. It may bring your AC back on for a short while, but it can exacerbate the underlying issue and can be dangerous. Pay attention to the following warning signs and call an electrician for support.
- Repeated trips
- Burning smells
- Full system shutdowns
- Odd clicking noises
- Fluctuating, unexplained airflow
When to Call HVAC, Electrical, or Both
Sometimes the issue is clearly mechanical, but other times it points to a deeper electrical problem. Knowing who to call helps avoid unnecessary delays and get your AC running faster.
Call an HVAC technician if:
- Your AC is blowing warm air
- The system is frozen or leaking water
- Airflow is weak or inconsistent
- The breaker trips after the AC has been running for a while
Call an electrician if:
- The breaker trips soon after the AC turns on
- You notice burning smells or buzzing sounds
- The lights dim significantly when the AC starts
- The electrical panel feels warm
- You suspect damaged wiring or a ground fault
Remember, an aging AC system can strain older electrical components, especially during Cookeville’s hottest summer months when cooling systems run constantly. In these situations, you may need both HVAC and electrical services. It helps to contact a local team with both HVAC technicians and electricians.
Get The Help You Need
An AC that repeatedly trips the breaker is not something to ignore. What starts as a nuisance can quickly turn into electrical hazards or a complete system shutdown during aggressive summer heat.
The team at Stone Mechanical can inspect your system and identify whether the issue is tied to your cooling system, electrical components, or both. We provide HVAC, plumbing, and electrical services across Cookeville and Upper Cumberland, making it easier to get the right fix without juggling multiple contractors.
Book online today or call (931) 342-1149 to restore safe, reliable cooling in your Cookeville home.
