July 23, 2026
Troubleshooting Common Generac Generator Problems
Troubleshooting Common Standby Generator Issues in Blairstown, NJ
Generac is the industry leader in residential backup power options. Generac generators have long been considered the gold standard in home generators for their durability, reliability, rugged construction, easy operation, and smart monitoring features. However, like any other home power solution, this powerful equipment requires regular inspections, care, and maintenance for safe operation and consistent performance. Here is a closer look at how to troubleshoot common standby generator issues in Blairstown, NJ.

A Quick Overview of How Generac Generators Work
Generac home standby generators turn on automatically to restore your home’s power during an outage. The system is hardwired to your home’s electrical panel and continuously monitors incoming electricity from the power grid. If it detects a drop in utility voltage or power loss, it automatically switches power to the generator, disconnecting your home from the dead utility grid. When electricity is restored and remains stable, power is automatically switched back to the grid, and the generator returns to standby mode.
Most Common Generac Generator Problems
Even with proper maintenance, your generator may develop issues caused by environmental stressors, damage, wear and tear, and other factors. Some of the most common Generac generator battery problems can result in:
- Battery failure
- Sensor-induced shutdown
- Fuel and air delivery issues
- Glitches or electrical issues
Understanding Generac Generator Error Codes
If your generator is experiencing a hardware or performance issue, you will see a four-digit code on the screen along with a yellow or red warning light. Here is a Generac generator error code list ranked by number:
- 1100 or 1101 – Overcrank or the engine turned over but failed to start. Often due to a clogged or closed fuel line, an empty propane tank, or bad spark plugs.
- 1300 – Low oil pressure due to oil leak, prolonged usage, or a faulty sensor.
- 1400 or 1401 – High temperature or an overheating engine caused by blocked vents or low coolant levels.
- 1500 to 1515 – RMP sense loss or loss of engine speed data during startup or operation due to a weak starter motor, broken flywheel teeth, or malfunctioning sensor.
- 1600 – Underspeed or an engine speed that is below operational parameters due to overloaded electrical demand or a faulty engine governor.
- 1200 or 1900 – Undervoltage or a voltage output below the threshold due to a failing AVR, internal wiring problems, or a massive electrical load at startup.
- 1800 – Overvoltage or electricity generated beyond safe thresholds due to cross-wired circuits or a faulty regulator.
- 2100 or 2101 – Overload or a demand greater than the generator’s supply due to too many appliances running at the same time.
- 2800 – Auxiliary shutdown caused by the flip of the external safety e-stop switch or an open lid switch.
Tips for Preventive Maintenance for Generac Generators
Proper generator maintenance, routine check-ups, service, and regular inspections will enhance the safety and lifespan of your generator and ensure optimal performance. We recommend that you:
- Perform a visual inspection monthly and/or before using or storing the generator.
- Check the oil level and look for signs of leaks each month or before using or storing.
- Clean debris away from equipment every month.
- Test the battery every six months.
- Clean the battery terminals, external air vents, and other components every six months.
- Schedule an engine tune-up each year or every 100 hours of operation.
- Replace the engine oil and oil filter every two years or 200 hours.
- Inspect and/or replace electrical components every two to three years.
- Perform a comprehensive professional inspection and tune-up every four years or 400 hours.
When to Call a Professional for Generator Service & Repair
You can handle some basic maintenance, cleaning, and troubleshooting tasks on your own. However, it’s important to know when it’s time to call a professional for generator repair:
- If you smell gas or suspect a fuel line leak.
- If the generator issues repeat or recurring electrical alarms or error codes.
- If the Automatic Transfer Switch fails to shift to or from grid power properly.
- If you see heavy smoke or smell a burning odor.
- If the engine backfires or you hear a knocking noise.
Safety Tips While Troubleshooting Your Generator Issues
Troubleshooting generator problems is typically safe, but you may be at risk of injury, such as burns, carbon monoxide exposure, or electric shock, in certain circumstances. You should follow these safety protocols:
- Turn the generator off completely before touching or inspecting any internal components.
- Remove the main fuse before taking apart any components.
- Never open the ATS panel.
- Avoid touching a generator, electrical cords, or breaker switches while standing in water or if they are touching or submerged in water.
- Only operate generators outdoors at least 20 feet from windows, doors, and roof vents.
- Point the generator’s exhaust pipe away from the home or other occupied structures.
- Don’t add gasoline or propane to a hot engine; let it cool for at least 10 minutes.
- Keep your hands, fingers, hair, jewelry, and clothing away from moving parts.
- Assume the engine, muffler, and other parts are hot.
- Wear safety glasses, gloves, and other gear before taking apart or troubleshooting the generator.
Call Seidel Electric for Generator Service & Repair
Seidel Electric offers reliable, professional generator inspections, maintenance, service, and repair. We are a recognized, top-tier, certified select Generac PowerPRO dealer with extensive technical expertise and rapid response times. Our factory-trained technicians offer comprehensive troubleshooting, reliable diagnostics, and warranty repairs. We provide all-in-one generator services throughout the entire lifecycle of your equipment, from installation to replacement. If you’re Googling “why my Generac generator won’t start” or wondering why your Generac generator isn’t producing power, we can help. Call us now or reach out to us online for professional generator service and repair in Blairstown, NJ, and throughout Northwestern New Jersey and the Poconos.
