Fill the battery cells with distilled water if the generator does not start or cranks too slowly.
Check the battery terminals for corrosion and brush them clean, if necessary.
Verify that all the battery connections are secure and free of damage.
Replace the fuse situated in the control panel if it has blown. Use a fuse of the same amperage.
Check the spark plug for carbon deposits if the engine cranks but does not start. Use a spark-plug socket wrench to remove the plug, and brush away any carbon deposits. If the porcelain insulation on the plug is damaged or cracked, replace the plug. A generator that tends to surge could also be a symptom of a defective spark plug.
Replace or clean the generator air cleaning filter if you notice black smoke venting from the unit. Remove the filter cover (left side of the generator) and air filter, vacuum the filter until clean and replace the filter and cover.
Reset the circuit breaker if the system trips when under load. You may need to flip the breaker back and forth a few times before it clicks into place. Consider removing some of the workload from the generator.
Add fuel and oil if the generator runs then shuts off when the RV is going around corners. This can also be a symptom of too much oil. Pull the dipstick and check the level, and adjust the oil level accordingly.
Inspect the generator's vents for obstructions if the unit starts, then stops when you release the start switch.
Drain the gas tank and replace with fresh fuel if the generator has not been in use for longer than 30 days. Fuel can sometimes become contaminated if it sits for longer than this.
