Standby Generator Repair in North Alabama & Southern Tennessee
When your standby generator fails to start, shuts down unexpectedly, or struggles to keep up with demand, Valley Services provides fast, reliable repair solutions backed by over 30 years of HVAC and electrical expertise. We diagnose and repair all major standby generator brands, including Briggs & Stratton, Generac, Kohler, Champion, Honeywell, and more.Our licensed technicians restore safe, dependable backup power for homeowners across North Alabama and Southern Tennessee. From troubleshooting startup failures to correcting electrical issues and resolving performance problems, we make sure your generator is ready when you need it most.
Our Generator Repair Services
Complete Generator Diagnostics & Troubleshooting
If your generator won’t start, runs rough, shuts off under load, or shows warning lights, our technicians perform a full system diagnostic to identify the root cause. We evaluate electrical components, engine performance, ATS function, load capacity, and fuel supply to ensure a precise repair that restores reliable operation.- Startup Failures
- Warning Lights & Error Codes
- Performance Problems
- Fuel System Issues
- Electrical Diagnostics
Automatic Transfer Switch (ATS) Repair
Many generator failures originate from the transfer switch rather than the generator itself. We repair ATS communication issues, load transfer failures, stuck contacts, wiring problems, and control board faults. Proper ATS function is essential for safe, automatic generator operation during outages.- ATS Troubleshooting
- Load Transfer Issues
- Control Board Failures
- Safety & Grounding Checks
- Communication Problems
Engine, Battery & Mechanical Repair
Engines and mechanical components require expert attention to ensure reliable performance. We repair fuel systems, carburetors, ignition components, valves, batteries, chargers, and lubrication systems. If your generator struggles to turn over or run smoothly, we identify and correct the mechanical issue quickly.- Battery & Starter Issues
- Fuel Delivery Problems
- Carburetor & Injector Repair
- Oil Leaks & Lubrication
- Engine Performance Issues
Electrical & Load Capacity Repairs
Generators rely on precise electrical output to protect your home’s sensitive equipment. We repair voltage fluctuations, overload conditions, grounding issues, breaker problems, worn wiring, and improper load management setups to ensure safe operation during power outages.- Voltage Irregularities
- Breaker/Output Issues
- Grounding Corrections
- Load Management Repair
- Wiring & Output Checks
Routine Repair After Failed Maintenance
Skipping maintenance often leads to clogged filters, low oil levels, battery failure, and worn components. We restore generators that have not been serviced regularly, ensuring they operate safely and reliably moving forward.- Filter Replacement
- Oil & Fluid Correction
- Battery Charging Failures
- Wear & Tear Repairs
- System Recovery Service
Why Choose Valley Services for Generator Repair?
As experienced HVAC and electrical professionals and a Certified Briggs & Stratton Dealer, we provide accurate diagnostics, honest recommendations, and repairs that restore dependable backup power when you need it most.| 1All Generator Brands Repaired We service Briggs & Stratton, Generac, Kohler, Champion, Honeywell, and more. |
2Licensed HVAC & Electrical Technicians We handle engine, electrical, and ATS issues with expert precision. |
3Fast Response Times We prioritize repair calls to restore your home’s backup power quickly. |
| 4Accurate Diagnostics We identify root causes, not symptoms, ensuring lasting repairs. |
5Certified Briggs & Stratton Dealer Factory-trained specialists for advanced engine and control repairs. |
6Local Expertise We understand outage patterns and backup power needs in our region. |
Generator Repair Service AreaWe provide generator repair throughout North Alabama and Southern Tennessee, proudly serving:Huntsville Madison Athens Decatur Meridianville Hazel Green Harvest Toney Gurley Ardmore Petersburg Fayetteville Pulaski Lynchburg Shelbyville Lawrenceburg Tullahoma Winchester
Don’t see your area listed? Call or text — we frequently assist homeowners outside our standard service map. |
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Generator Repair FAQs
What areas do you serve for generator repair?
Valley Services provides standby generator repair throughout North Alabama and Southern Tennessee, including Huntsville, Madison, Athens, Decatur, Meridianville, Hazel Green, Harvest, Toney, Ardmore, Fayetteville, Pulaski, Lynchburg, Shelbyville, and surrounding communities. We often assist homeowners outside our main map—just call or text to confirm availability.
What are the most common reasons a generator won’t start?
Generators fail to start for several reasons, including battery failure, low oil, clogged filters, stale fuel, carburetor issues, faulty sensors, or automatic transfer switch (ATS) communication problems. Our technicians perform a full diagnostic to identify the exact cause and restore safe, reliable operation.
How do I know if my generator needs professional repair?
Warning lights, error codes, unusual noises, slow cranking, voltage fluctuations, exhaust smoke, frequent shutdowns, or failure to run under load are signs of a problem. If your generator behaves differently than usual, it’s best to schedule service before a major outage occurs.
Do you repair all generator brands?
Yes. While Valley Services is a Certified Briggs & Stratton Dealer, we repair all major generator brands, including Generac, Kohler, Champion, Honeywell, Eaton, and others. We diagnose engine problems, electrical issues, ATS faults, and performance issues regardless of manufacturer.
Can you repair my automatic transfer switch (ATS)?
Absolutely. Many generator issues stem from ATS malfunctions—not the generator itself. We repair stuck relays, communication failures, control board issues, wiring problems, incorrect load transfers, and safety faults. A properly functioning ATS is essential for automatic backup power.
How long does generator repair usually take?
Most repairs are completed the same day, depending on parts availability and complexity. Diagnostic visits typically take 45–90 minutes. If specific parts are needed, we provide a clear timeline and keep you updated every step of the way.
Why does my generator shut off during operation?
Generators may shut down due to overheating, low oil pressure, clogged filters, electrical overload, faulty sensors, or improper voltage regulation. We perform full engine and electrical diagnostics to identify the fault and prevent future shutdowns.
Can you fix voltage fluctuations or low output problems?
Yes. Electrical output issues often point to alternator problems, faulty voltage regulators, damaged wiring, failing breakers, or improper load management. We calibrate and repair these components so your generator delivers stable, safe power during outages.
What if my generator hasn’t been maintained in a long time?
No problem. Many repair calls involve generators that haven’t been serviced in several years. We can restore neglected units by replacing filters, oil, spark plugs, damaged wiring, batteries, and cleaning critical components. Once repaired, we recommend a maintenance schedule to keep it reliable.
Do you offer repair and maintenance plans?
Yes. After completing repairs, we can set up routine service to protect your investment. Our plans include oil changes, filter replacements, battery checks, startup tests, ATS verification, and system inspections. Regular maintenance significantly reduces the risk of future breakdowns.
Schedule Generator Repair Today
Call (256) 783-6100 or request service online. Our licensed technicians repair all major generator brands for homeowners across North Alabama and Southern Tennessee.Request Generator Repair
