Keep Your Truck Powered and On the Road
APU / EPU & Electrical Repair in Charlotte, NC
At G Smart Service LLC, we know that a dead APU, a faulty EPU, or an electrical fault can stop your truck cold. That's why our mobile repair service comes directly to you anywhere in Charlotte, NC, to get your auxiliary power and electrical systems working again. From APU and EPU repairs to alternators, starters, batteries, and wiring, our certified technicians deliver quality service you can trust.
APU / EPU & ELECTRICAL REPAIR IN CHARLOTTE, NC
Our APU, EPU & Electrical Repair Services
A failing APU, EPU, or electrical issue can shut your truck down fast and burn fuel you didn’t plan for. Trust G Smart Service LLC to diagnose the problem right the first time and get your fleet back on the road.
Schedule Your Service Today
Don’t wait until small issues become big headaches. Call us at (980) 318-0425 for reliable preventive maintenance that keeps you on the road and ahead of the game. We’re ready to support your fleet—every mile of the way.
Why Choose G Smart Service LLC?
We’re more than just a quick fix—our goal is to extend the life of your trucks and minimize costly downtime. Here’s what makes us stand out:

Rapid Response & Mobility
We bring the P.M. service to your location, eliminating the hassle of towing or scheduling around shop availability.

Professional Mechanics & Equipment
Our team uses advanced diagnostic tools and top-grade parts to keep your trucks performing at their best.

Transparent Pricing
Expect clear, upfront cost estimates with no hidden fees, so you can plan your maintenance budget confidently.

Personalized Approach
Every fleet is unique. We tailor our services to meet your specific needs, ensuring optimal performance no matter the size or type of vehicles.
Frequently Asked Questions about Preventive Maintenance Service in Charlotte, NC
An APU (Auxiliary Power Unit) provides power for heating, cooling, and electronics while your engine is off. It keeps your cab comfortable and cuts fuel use from idling, which saves money and reduces engine wear.
An APU typically runs on a small diesel engine, while an EPU (Electric Power Unit) runs on battery power. Both supply auxiliary power to your truck, and we service and repair both types.
Common warning signs include the unit failing to start, weak or no heating and cooling, unusual noises, error codes, or excessive fuel use. If you notice any of these, it's best to have it checked before it fails completely.
Yes. We service and repair Thermo King TriPac and EVOLUTION units along with other major APU and EPU brands. Just give us a call with your unit details and we'll help.
Yes. Our mobile service comes directly to you anywhere in the Charlotte, NC area, so you don't have to bring your truck into a shop and lose valuable road time.
We handle alternators, starters, batteries, wiring, lighting, fuses, and electrical connection issues. If your truck has a power or electrical fault, our technicians can diagnose and repair it.
It depends on the issue. Simple electrical fixes and diagnostics can often be done the same day, while major APU repairs may take longer if parts need to be ordered. We'll give you a clear time estimate up front.
Yes. A weak battery, faulty wiring, or charging problem can stop an APU or EPU from working properly. That's why we check the full electrical system when diagnosing power unit issues.
Most APUs benefit from regular maintenance based on run hours, similar to engine oil changes. Routine service helps prevent breakdowns and extends the life of the unit. We can set up a schedule for your fleet.
Just call us at (980) 318-0425 or fill out the contact form on this page. Tell us your location and the issue, and we'll get a technician out to you in the Charlotte, NC area.