What causes a generator to surge?

Surging caused by fuel problems usually happens for one of three reasons: incorrect fuel, low fuel levels, or poor fuel quality. Most generators have specific fuel requirements and using any type of fuel outside of those parameters can cause operational issues, including surges.

Why is my generator revving up and down?

If you are experiencing surges and your generator is nearing or beyond its expected service life, consider replacing it. Fuel Problems. Generators have specific fuel requirements; using poor quality fuel, the wrong type of fuel, or low fuel levels can cause operational issues, including surges. Maintenance Problems.

Why does my generator not run smoothly?

The carburetor might be clogged. A clogged carburetor is most often due to leaving fuel in the generator for a long period of time. This sticky fuel can clog up the carburetor and cause the engine to stall or run roughly. If the carburetor is clogged, try cleaning it with carburetor cleaner.

Why is my Onan generator surging?

Prolonged surging is indicative of a governor and/or carburetor out of adjustment. Unfortunately, the carburetor and governor should only be adjusted while monitoring the voltage and frequency and while applying a measured load at the same time. In other words, RV generators cannot be tuned by ear.

Why is my new generator sputtering?

Sputters and Stalls / Clogged Filters Clogged air filters are a common problem with portable power generators. If you typically operate the generator in dusty environments such as barns or construction sites, you need to regularly clean or change your air filters.

Can spark plugs cause surging?

3. Surging and Lagging. Another good indication that your spark plugs are dirty or worn is if your vehicle experiences surges of speed, resulting in a jerking acceleration. These surges occur because your spark plugs are not igniting the fuel in your engine at the proper rate, resulting in an uneven speed.

Where is the carburetor located on a generator?

Note: The carburetor is located in the back of the generator just behind the air filter assembly.

Why do generators hunt?

Usual causes of generator hunting and surging – solutions Fuel blockage or restriction: Firstly, check filters and fuel quality. Fuel pump – intermittent fault: Check for leaks or lack of fuel. Machinery has suddenly started up and caused a wild spike load.

How do you diagnose a bad generator?

6 Signs Your Generator May Need Repair or Servicing

1. You see visible damage.
2. You’re experiencing start-up delays.
3. Your power is inconsistent.
4. The generator is running, but it’s not putting out any electricity.
5. You notice a strange smell or noise.
6. You haven’t started the generator in more than 6 months.

How do you fix an overloaded generator?

To reset the generator, turn off all power and then restart it. You should also use the overload reset button to reset the generator before restarting it. This time, once it stabilizes, plug in a load.