Try to crank your generator and see if it cranks. If the generator does not crank, look first for a blown fuse in the fuse box. To make your life easier label what each fuse or circuit breaker powers.
See what the reading is on the voltage meter. It needs to be above 9.5 of Volts Direct Current or VDC. Charge your battery if it is below 9.5 VDC. A completely charged battery will read 12.6 VDC. If you are not getting a good reading even when the battery should be fully charged, you may need a new battery.
Look to see if the generator cranks but does not start up when it should. Check the battery posts and all the cables. If any are corroded or worn away the power may not be flowing to the generator sufficiently and might need to be replaced. Wipe away any corrosion with a lint-free cloth.
Check the carburetor and make sure it is clean and unclogged. Ensure the spark plugs and air filters are clean.
Check the oil and fuel levels. Sometimes it is the most basic things that cause a malfunction.
Check for clogs in the generator lines. If you do not use the RV for a few weeks, you should let the engine run for about a half an hour once or twice a month. Turn the generator on and allow that to run at the same time. This will help keep the fuel lines and air hoses unclogged.
