Generator Repair in Jacksonville
Generator Repair from an Accredited Whole-Home Service Team
We provide generator repair in Jacksonville for homes and businesses experiencing backup-power failures. Our technicians evaluate the unit alongside the transfer switch, electrical connections, system settings, and equipment drawing power during an outage.
Signs that call for professional diagnosis include failure to start, repeated shutdowns, inconsistent power, warning codes, fuel or oil leaks, and unusual noise or vibration. These problems may surface during an outage, a scheduled exercise cycle, or a pre-storm test.
Call (904) 605-8190 to schedule generator diagnostics and get clear next steps for your backup-power system.
What to Expect During Generator Diagnostics
We begin by reviewing when the failure appeared, how the equipment responded, and whether the problem occurred during an outage, exercise cycle, or manual test.
Here’s what on-site testing can include:
- Checking startup, shutdown, and warning indicators
- Testing performance under the property’s electrical load
- Inspecting transfer-switch connections and system settings
- Evaluating relevant fuel and electrical components
Before the appointment, note any warning messages, unusual sounds, leaks, recent outage behavior, or changes to the property’s electrical or HVAC equipment. Maintenance records can also show how the problem developed.
If the issue is extensive, we’ll explain whether repair or replacement is more appropriate for the unit’s condition. The recommendation may depend on whether the cause is a correctable component failure, broader equipment wear, an unsafe installation, or a system that can’t meet the property’s current electrical demands.
Serving Northeast Florida Since 1983
At David Gray, we’ve built our reputation by arriving prepared, communicating clearly, and standing behind our work. We’re a BBB-accredited business and a recipient of the 2024 Angi Super Service Award.
Because we handle electrical, heating, air conditioning, and plumbing services, we can evaluate connected systems instead of treating backup power as an isolated engine problem. If ongoing care makes sense after the repair, Maintenance plans are available to support long-term system health.
Our Reviews See What Our Customers Say
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"Will certainly use David Gray services again."
Clearly explained what needed to be done and why. Worked efficiently and neatly. I’m very pleased.
Jennifer W. -
"This review is well deserved. Thank you!"
We are grateful to all the professionals who turned our frown upside down.
Wes L. -
"The entire David Gray crew was simply awesome!"
Thanks for doing such a thoughtful and precise job, we are very happy!
Ryan M. -
"One of the best home service crews at David Gray!"
They were organized, prepared, careful, thorough, meticulous, pleasant, and incredibly helpful.
T. Prousis -
"I unequivocally recommend David Gray for any work you need done."
From start to finish (estimates thru installation) if you use David Gray you will be completely satisfied and happy that you did.
Cindy S. -
"They are reliable and knowledgeable!"
Our technician Rowdy did a great job explaining ways to improve our system and was very helpful.
Stephen B. -
"My husband & I are a very satisfied!"
Outstanding service on our duct cleaning today from David Grey Heating & Air.
Jackie G. -
"We were quite impressed with their thoroughness."
They worked without distractions and cleaned when they completed their work.
Fern M.
Generator Repair for Jacksonville Homes & Businesses
We’re an authorized Generac dealer, and our services include repairs, maintenance, and transfer-switch work. Our electrical and HVAC capabilities allow us to account for central air-conditioning loads and other essential circuits when evaluating automatic standby power.
After testing, we explain what we found, review the available service options, and provide upfront pricing. You’ll understand the equipment’s condition and the recommended work before deciding how to proceed.
Get Clear Answers About Your Backup Power
Our technicians can identify why the system isn’t starting, transferring power, or carrying the expected load. Because our electrical, HVAC, and plumbing services are coordinated through one team, connected home-system concerns don’t require multiple contractors.
Free second opinions are available when you want another assessment before approving a major repair or replacement. We don’t add extra fees for evening or weekend service calls.