Introduction

There’s nothing more frustrating than turning on your AC, hearing it start up, and then—click—the breaker trips again. Nothing can be more disgusting than the facing that you face In case your HVAC breaker keeps tripping, do not consider it as a minor issue. The breaker is manufactured in such a way that it automatically shutdowns whenever it detects exceeding amounts of current or fault. Tripping repeatedly can mean there is something wrong with system. So, why does my HVAC keep tripping the breaker? Here are seven common reasons for it.

1. A Dirty Air Filter Is Restricting Airflow

When dust and debris sticks in the air filter it become heavier for system to operate. It reduces the airflow and makes it difficult to move circulate around the house, which eventually draws more power.

What to do: Keep a check on filters and conduct deep cleaning whenever necessary.

2. The Capacitor Is Failing

Your AC compressor and fan motor need a strong electrical boost when starting. That’s where the capacitor steps in.

If your capacitor is weak with time, its motor may draw more current to get started and during the operation. The extra load consumed by capacitor cn make the breaker trip repeatedly. Specially whenever you turn the system on.

A faulty capacitor is not a good DIY repair. It should be tested and replaced by a qualified HVAC technician.

3. The Compressor Is Struggling

The most hardest working component in the air conditioner and heat pump is a compressor. If the compressor is faulty, it will produce more heat during the functioning of device. Any damage and overheating will render the compressor to draw excessive power.

This is often why an AC keeps tripping breaker problems can become more serious over time. If the breaker trips almost immediately after the compressor starts, a compressor or starting-component problem could be involved.

4. There’s a Problem With the Wiring

Loose, damaged or burnt wiring can create electrical resistance, shorts or other faults.

And this one is most prominent: Usually electricity problems should not be solved using DIY methods. If notice any unusual burning smell, noise, wire damage, smoke, or repeated breaker trips, then it is necessary to switch off the system and get it diagnosed with professionals. Mostly, loose electrical connections are a known cause of AC starting problems.

5. The Outdoor Coil Is Dirty

Your outdoor condenser needs to release heat. When dirt, debris and other foreign materials mask the coil of the system, heat get completely trapped with nowhere to go In such case, to complete each operation, the system works harder than its capacity which increase the current load. Overtime, the strain cause the breaker to trip frequently.

It is very important but small step to keep the coils and filters clean from any foreign particles. It does makes a huge difference in electrical load.

6. The Motor Is Overheating or Failing

These HVAC devices are designed to be dependent on its motors. The motors operates to move air and operate outdoor fan. A faulty or overused motor will consume excessive power.At times, warning signs are very evident but see tend to ignore it. If you notice any humming sound, weak airflow, or fan that struggle to start then seek professional help immediately.

If your heat pump keeps tripping breaker, know that outdoor unit fan motor or other motor related issues are on the edge. Not only air conditioners, but heat pumps also experience tripping of the breaker. It could be because of compressor, wiring, or heating issues.

7. The Breaker or Electrical Circuit Has a Problem

Not every breaker trip means the HVAC equipment itself is completely at fault.

A breaker which is old, defective, oversized, undersized, loosely tied, excess power driven, can cause problems. A breaker tends to protect the overall wiring, so replacing it is not the solution all the time. It is important to check circuit equipment as per the requirement of manufacturer.

What Causes an HVAC Breaker to Trip Repeatedly?

If you’re wondering what causes an HVAC breaker to trip, the answer can range from simple cause to more serious issue

It involves:

• compressor
• motor
• capacitor
• wiring
• electrical circuit
• Filters
• Coils

The timing makes it easier to understand. If the breaker trips immediately after starting the system, there may be possibility of issues of electrical components. But if the breaker trips while the system is operating then it could indicate issues with overheat or load.

Trane and Carrier both recommend professional attention when a breaker continues to trip.

Conclusion 

A tripping breaker is your HVAC system’s way of saying, “Something isn’t right.” It could indicate issues with airflow, electrical components or mechanical components. If your HVAC breaker keeps tripping, get the system diagnosed from professionals instead of repeated repairs and DIYs. Professional HVAC service provider will inspect the machinery to find the real cause and provide suitable solution. Early inspections will lead to convenient solutions that are economical and easy to operate..