Generator Repairs
Emergency & Whole-House Generator Repair in Tyler & Longview, TX
Restore Your Power and Peace of Mind with TDi Services
When the Texas power grid falters, your whole-house generator is your family’s critical line of defense. If your generator fails to start or is showing signs of trouble, you need fast, expert generator repair in Tyler, TX and Longview, TX.
TDi Services, your trusted provider for HVAC and electrical solutions, now offers comprehensive generator repair services throughout East Texas. Our licensed and experienced technicians are available to diagnose and fix any issue, ensuring your backup power system is ready for the next outage.

Don't wait until the next power failure to discover a problem. If your generator is showing a fault code, running erratically, or simply won't start, call TDi Services immediately.
Our Comprehensive Generator Repair Services
We understand that a generator breakdown is an urgent matter. Our expert technicians are equipped to service and repair all major brands of standby and portable generators, including Generac, Cummins, Kohler, and Briggs & Stratton.
What's Included in a TDi Generator Repair Service?
System Diagnostics and Troubleshooting
We begin with a thorough inspection and diagnostic process to pinpoint the exact cause of the failure, whether it's an engine issue, electrical fault, or transfer switch problem.
Engine and Mechanical Repairs
- Fuel System Repair: Fixing issues like clogged fuel lines, faulty fuel pumps, or air in the fuel system (a common issue in units that sit idle).
- Oil and Fluid Leaks: Identifying and sealing oil, fuel, or coolant leaks that can lead to engine damage.
- Spark Plug and Ignition Repair: Replacing worn-out spark plugs and fixing ignition issues that prevent the engine from starting.
- Cooling System Service: Repairing leaks and ensuring proper coolant levels to prevent dangerous overheating.
Electrical and Transfer Switch Repair
We are also fully licensed electricians, meaning we can handle the power-side of your repair with expertise, including:
- Repairing or replacing Automatic Transfer Switches (ATS) that fail to signal the generator to turn on.
- Fixing electrical shorts, wiring issues, and control panel errors.
- Diagnosing and resolving low power output problems, often caused by an overloaded generator or faulty components.
Battery Replacement and Charging System Repair
The single most common reason a generator fails to start is a dead battery. We test the battery, charging system, and connections, and provide professional battery replacement if necessary.
Exhaust System Service
Clearing carbon buildup or repairing leaks in the exhaust system to ensure optimal engine performance.
Common Generator Problems We Fix in East Texas
| Problem Symptom | Common Causes We Repair |
|---|---|
| Generator Won't Start | Dead or low battery, wrong control switch setting (left in 'Manual' instead of 'Auto'), air in the fuel system, low oil or fluid levels |
| Engine Cranks but Won't Fire | Clogged fuel filters, contaminated fuel, worn spark plugs, or carburetor issues |
| Generator Shuts Down Suddenly | Low oil pressure, overheating due to insufficient coolant or blocked airflow, or a heavy power overload |
| Making Unusual Noises | Loose components, internal engine wear, dirty fuel injectors, or a blocked exhaust system |
| Generator Runs but No Power Transfers | Faulty Automatic Transfer Switch (ATS) or a tripped main breaker on the unit. |
Why Choose TDi Services for Generator Repair?
Local Expertise You Can Trust
Dual Expertise
As both HVAC and electrical specialists, we possess a unique and comprehensive understanding of the mechanical and electrical systems that make up your whole-house generator.
Rapid Response
We know that a non-working generator means discomfort and potential loss. Our team is dedicated to providing fast, reliable emergency generator repair when you need it most.
Factory-Trained Technicians
Our professionals are trained and up-to-date on the latest diagnostics and repair procedures for all leading generator brands, ensuring a correct fix the first time.
Serving Tyler and Longview
We are proud to be a local East Texas company, deeply familiar with the power demands and weather challenges unique to our region.
Prevent Future Breakdowns
Don't let neglecting your unit lead to costly emergency repairs. After every repair, we recommend scheduling an annual generator maintenance service. Regular maintenance is proven to:
- Prevent 50% of No-Start Failures (The majority are battery and maintenance related).
- Keep Your Warranty Valid by adhering to the manufacturer's service guidelines.
- Extend the Lifespan of your valuable investment.
Ready for Reliable Power?
Whether you need urgent generator repair in Tyler, TX, or are looking for professional standby generator service in Longview, TX, TDi Services is here to keep your home running smoothly.
Contact TDi Services today to schedule your generator repair or diagnostic appointment.
