Resources · Air conditioning + electrical
AC Breaker Keeps Tripping in Delray Beach: HVAC Problem or Electrical Problem?
If your air conditioner keeps tripping the breaker, it feels like a guessing game — is it the AC unit, or your home's electrical system? In Delray Beach, where central air runs nearly year-round and many homes still have panels that are 20, 30, or 40+ years old, this is one of the most common calls we get.
The honest answer is that it depends — and resetting the breaker again and again without diagnosing the cause can be a fire risk. Because we handle both air conditioning and electrical work in house, the full path can be diagnosed — compressor, disconnect, breaker, panel — instead of sending you between two companies.
- What actually causes an AC breaker to trip
- How to tell an HVAC fault from an electrical fault
- When to stop resetting and call for service
- What an electrician checks vs. what an HVAC tech checks
35+ Years in Business · Licensed & Insured AC and Electrical Technicians · Open 24 hours · 7 days a week · 24/7 Emergency Service
What causes an AC breaker to trip
A breaker trips when more current flows through the circuit than it is rated to carry safely. On a central air conditioning system, that usually traces back to one of these seven sources.
- 1
High compressor startup amperage (locked rotor amps)
Every start draws several times normal running current for a moment. An aging or failing compressor, a weak start capacitor, or a failing hard-start kit can push that surge high enough to trip the breaker.
- 2
A dirty or failing condenser fan motor
When the outdoor fan is straining — a bad capacitor, worn bearings, or debris in the unit — it pulls extra amperage and can trip the breaker along with the compressor.
- 3
A refrigerant or airflow problem overworking the compressor
Low refrigerant, a blocked condenser coil, or restricted airflow makes the compressor work harder and draw more current than it should.
- 4
An undersized or outdated circuit
Some older Delray Beach homes were wired for smaller AC units. If the system was replaced with a larger one and the circuit was never upgraded, the wiring and breaker were never sized for that load.
- 5
A worn-out or mismatched breaker
Breakers degrade. One that is old, corroded, or was never matched to the correct amperage for the equipment can trip even when the AC system itself is healthy.
- 6
A failing disconnect box or condenser wiring
The outdoor disconnect, wire terminations, and contactor can loosen, corrode, or short over time from heat and Florida humidity, causing intermittent or repeated trips.
- 7
Surge or moisture damage
Frequent South Florida storms can degrade capacitors, contactors, and control boards without a total failure — which shows up as a breaker that trips randomly rather than every cycle.
Electrical problem vs. HVAC problem: how to tell
Compare what you are seeing against both columns. Symptoms in the left column point toward the equipment; symptoms in the right column point toward the circuit and panel.
| Likely HVAC | Likely electrical |
|---|---|
| Breaker trips specifically when the outdoor unit kicks on | Breaker trips randomly, not tied to the AC cycle |
| You hear a hum, click, or buzz from the condenser before it trips | Other outlets or appliances on the same circuit also lose power |
| The system is older (10+ years) or has not been serviced recently | The breaker feels hot, looks discolored, or will not stay reset |
| Reduced airflow, warmer air, or ice on the coil before the trip | The panel is older (Federal Pacific, Zinsco, or 1970s–80s equipment) |
| Trips happen right at startup, not while the system is running | Other unrelated circuits have tripped or lights flicker |
Seeing a mix of both columns is common — a struggling compressor and an aging panel often surface at the same time. That is exactly where one company covering both trades saves a second diagnostic visit.
When not to just reset the breaker again
In Florida heat it is tempting to flip it back and keep going. Stop and call for service instead if any of these apply:
- The breaker has tripped more than twice in the same day
- You smell anything burning, plasticky, or like ozone near the panel or outdoor unit
- The breaker feels hot to the touch, or the panel cover is warm
- The breaker will not stay reset, or trips again within seconds
- You see scorch marks, melted plastic, or discoloration on the breaker or panel
- The AC unit makes a loud bang, hum, or buzz right before it trips
Repeatedly resetting a breaker that is protecting a genuine fault — a short, a failing compressor winding, or heat damage inside the panel — is a recognized fire hazard. A breaker that trips is doing its job; the goal is to find out why it had to. If you see smoke or fire, call 911 first.
Call (561) 816-5331What the electrician checks
- Breaker condition, age, and correct amperage rating for the connected equipment
- Wire connections and terminal tightness at the breaker and the disconnect
- Panel condition — corrosion, heat damage, outdated panel types, available capacity
- Whether the circuit was ever properly sized for the AC unit's actual electrical load
- Grounding and bonding at the outdoor disconnect
- Signs of surge damage from lightning or grid fluctuations
- Whether a dedicated circuit or a panel upgrade is needed to support the system safely
Performed by licensed, insured electricians.
What the HVAC technician checks
- Compressor amp draw compared with the manufacturer's rated specifications
- Start and run capacitors, contactor condition, and hard-start kit function
- Condenser fan motor amperage and bearing condition
- Refrigerant charge and airflow across the condenser and evaporator coils
- Condition of the outdoor disconnect and the internal wiring at the unit
- System age, and whether repeated electrical strain points to end-of-life equipment
Air conditioning work is performed by our own licensed, insured air conditioning technicians.
Equipment usually involved
- Outdoor condensing unit — compressor, condenser fan motor, contactor
- Start and run capacitors, and hard-start kits
- Outdoor disconnect box
- Circuit breaker and the home electrical panel
- Line-voltage wiring between the panel and the condenser
- Indoor air handler (less common, but possible on shared circuits)
Where we service
Licensed electrical service throughout Palm Beach County and Broward County, Florida, including Delray Beach, Boynton Beach, and Boca Raton. Office: 956 SW 20th Ct, Delray Beach, FL 33445.
Licensed, insured, and permitted
Delray Beach Air Conditioning & Electrical is a collective of licensed electricians and air conditioning technicians. Work is performed by licensed, insured crews, including permitting and inspection where your municipality requires it. Open 24 hours · 7 days a week.
Tripping AC breaker questions
Breaker keeps tripping? Don't keep resetting it. Call (561) 816-5331 or send the form below and we'll diagnose the full path in one visit.
Contact
Request service
Tell us what's going on and when you'd like us out. For anything that feels like a safety issue — burning smell, scorched outlet, sparking — call instead.
- (561) 816-5331
- admin@acdelray.com
- 956 SW 20th Ct, Delray Beach, FL 33445
- Open 24 hours · 7 days a week
24/7 Emergency Service