Generator Repair & Service in Las Vegas & Henderson
Your standby generator should start automatically when the grid drops — if it cranks but never transfers, stays silent during an outage, or has not been serviced in years, Penny Electric diagnoses and repairs the electrical side across Las Vegas and Henderson.
When Does a Standby Generator Need Repair?
A generator that fails when you need it most is often an electrical problem — transfer switch faults, tripped breakers, bad control wiring, or a panel tie-in that never got tested after install. Penny Electric troubleshoots standby generators and transfer switches; we do not rebuild engine blocks, but we fix the electrical path that makes automatic backup work. Common repair calls in the Las Vegas valley:
This work is part of our complete EV and home energy services for Las Vegas and Henderson — Tesla and Span certified installers, licensed C-2 #74758, permitted and code-compliant.
Signs Your Generator Needs Service
Generator won't start during an outage
Silence when the grid drops may trace to a failed transfer switch signal, tripped breaker, or control-circuit fault — not always the engine.
Cranks but power never transfers to the house
The unit runs but your home stays dark — often a transfer switch, ATS wiring, or panel interlock problem we diagnose on site.
Transfer switch buzzing, humming, or hot
Heat, odor, or arcing at the transfer switch is an urgent safety issue — shut off the generator and call a licensed electrician.
Has not been exercised or serviced on schedule
Manufacturers recommend monthly exercise cycles and annual electrical checks — neglected units fail when monsoon season hits.
Generator not working when you need it? We'll diagnose the electrical fault upfront.
What Generator Repair Includes
- Transfer switch diagnosis and repair
- Standby generator electrical troubleshooting
- Panel tie-in and interlock inspection
- Control wiring and signal testing
- Breaker and connection fault repair
- Exercise-cycle verification and maintenance checks
Generator repair addresses existing installs — distinct from new generator installation. Part of our EV and home energy services; see also panel upgrades, Las Vegas electrician, and Henderson electrician coverage.
Why Penny Electric
Licensed NV C-2 #74758
Generator transfer switches and panel tie-ins are high-capacity electrical work — handled by a licensed Nevada contractor.
Electrical diagnosis, not engine overhaul
We fix transfer switches, control circuits, and panel connections — the electrical failures that leave generators useless during outages.
Upfront pricing before repair work
You know the cost after diagnosis — before we replace a transfer switch or rewire a tie-in.
4.9★ Average Across 671+ Reviews
Trusted by Las Vegas and Henderson homeowners when standby backup fails to perform.
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How It Works
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01
Diagnose
We test the transfer switch, control signals, panel tie-in, and breakers to find why the generator is not delivering power.
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02
Repair
Faulty switches, wiring, connections, or breakers are repaired or replaced with correctly rated components.
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03
Test & Verify
We simulate outage conditions where safe, verify automatic transfer, and confirm the home receives backup power.
Generator Repair FAQ
Do you repair standby generators that won't start?
We troubleshoot the electrical side — transfer switch, control wiring, breakers, and panel tie-in. Engine mechanical work may require your generator manufacturer or dealer; we fix the electrical path that prevents automatic backup.
My generator runs but the house has no power — what causes that?
Usually a transfer switch that failed to engage, a tripped breaker between the generator and panel, or a wiring fault in the automatic transfer switch (ATS). We diagnose on site.
Generator repair vs. installation — what's the difference?
Installation is a new standby system with transfer switch and panel tie-in. Repair fixes existing equipment that is not starting, not transferring, or failing exercise tests — see our generator installation page for new installs.
How often should a standby generator be serviced?
Most manufacturers recommend monthly exercise cycles and annual professional inspection of the transfer switch and electrical connections. Las Vegas heat and dust make scheduled checks worthwhile.
Do you repair transfer switches?
Yes — transfer switch diagnosis and repair are a core part of generator service. A failed ATS is one of the most common reasons standby units do not power the home during an outage.
Have a Question? Contact Us
Reach out about your project, a quote, or anything else - we'll get right back to you.
Contact Us
Fax: (702) 586-3771
Phone answered at our Henderson main office.
Henderson Office (Main Office)
1987 Whitney Mesa Dr
Henderson, NV 89014
All staff, reception, and personnel.
Las Vegas Service Facility
3645 W Oquendo Rd Unit E
Las Vegas, NV 89118
Equipment and parts hub only
Hours
- Mon - Fri: 7AM - 5PM
- Saturday: By appointment
- 24 Hr Emergency Service