Why Your Portable Generator Keeps Tripping the Breaker (And How to Fix It)
A portable generator that keeps tripping the breaker can be frustrating and disruptive, especially when you need reliable backup power. Whether you're using a generator for home backup, camping, or job sites, frequent breaker trips indicate an underlying issue that needs attention. In this guide, we’ll explore the common causes and solutions for this problem.
Common Reasons Your Generator Breaker Keeps Tripping
1. Overloading the Generator
Every generator has a rated capacity, and exceeding it can cause the breaker to trip. Check the wattage of all connected appliances and ensure they don’t exceed the generator’s power limit. Most generators list both running watts and surge watts—make sure your devices fit within those limits.
2. Short Circuits or Faulty Wiring
A short circuit in an extension cord or within the appliances connected to the generator can trip the breaker. Inspect all wiring and cords for damage, exposed wires, or burns.
3. Ground Fault Issues
Portable generators should be properly grounded to avoid electrical hazards. A ground fault occurs when electricity escapes the intended circuit, which can trip the generator’s built-in breaker. Make sure your generator is grounded according to the manufacturer’s instructions.
4. Faulty or Sensitive Breaker
Breakers can wear out over time or become overly sensitive. If your generator's breaker trips frequently, even under normal loads, it may need to be replaced.
5. Moisture or Wet Conditions
Generators should never be used in wet conditions without proper protection. Moisture can cause short circuits, leading to breaker trips. Always operate your generator in a dry, well-ventilated area.
Read more about generator maintenance here
How to Fix a Generator That Keeps Tripping the Breaker
Step 1: Reduce the Load
Disconnect some devices and try running the generator with a lighter load. If it runs fine without tripping, then overloading is the issue.
Step 2: Inspect Cords and Appliances
Check for damaged or frayed cords. Test each appliance separately to see if one specific device is causing the problem.
Step 3: Check for Ground Faults
Use a ground fault circuit interrupter (GFCI) tester to identify any grounding issues. If necessary, re-ground your generator.
Step 4: Reset or Replace the Breaker
Try resetting the breaker. If it continues to trip under normal conditions, consult an electrician or replace the breaker.
Step 5: Keep the Generator Dry
Move your generator to a dry location and use a generator tent or cover to protect it from rain or moisture.
When to Call a Professional
If you’ve tried these solutions and your portable generator still keeps tripping the breaker, it may be time to consult a licensed electrician like us. Call today!