Thermostats & Controls · Nationwide
HVAC electrical repair
Heat is hard on electrical parts. Capacitors swell and lose capacity, contactor points pit and burn, and wire connections loosen. These are the most common summer failures in Las Vegas, and most are quick repairs once tested.
- Same-day appointments when available
- Licensed HVAC contractors
- Written price before any repair
A swollen or weak capacitor makes the compressor or fan struggle to start, which shows up as a hum, a slow start or a tripped breaker.
Ants and other insects sometimes nest in contactors and block them from closing, which is a surprisingly common call.
HVAC Electrical Repair at a glance
- Category
- Thermostats & Controls
- Service area
- Nationwide
- Typical visit
- Safety first → Test → Replace → Verify
- Urgent help
- Yes. Call for the fastest connection.
- Equipment covered
- Run capacitors, Dual capacitors, Contactors, Hard-start kits, Fused disconnects, Transformers
Symptoms
Signs you need hvac electrical repair
- Outdoor unit hums but won't start
- Breaker trips when the AC starts
- Clicking with no startup
- Burnt smell at the disconnect
- Thermostat goes blank
Process
How the visit works
- 1
Safety first
Lock out power and discharge capacitors.
- 2
Test
Capacitance, voltage, amp draw and continuity.
- 3
Replace
Capacitor, contactor, fuse, disconnect or wire.
- 4
Verify
Startup amps within spec.
Cost
What affects the price
Every contractor sets their own prices. These are the things that move the number. Ask for a written price before work starts.
- Part replaced
- Hard-start kit if the compressor struggles
- Disconnect or whip replacement
Before the tech arrives
What you can safely do
Safe to try
- Reset a tripped breaker once
- Check the disconnect is on
Stop and call
- Capacitors can shock even with power off
- Keep resetting a breaker and you risk a fire
FAQ
HVAC Electrical Repair questions
How long does an AC capacitor last?+
Often 5–10 years, and less in very hot climates. Techs commonly test capacitors at each tune-up to catch weak ones before they fail.
HVAC Electrical Repair by state
Related
Related services
Guides
Need heating or cooling help now?
Call to be connected with a licensed HVAC contractor serving your ZIP code, or send a request online.