help gen problem

[golfman_1]

Onan 7.5 gen. Will start and run. When you start coffee pot, microwave, a/c it shuts off., Only code was 22,not enough power. What could be problem?

[sdianel_-acct_c]

We took ours to a Cummins location and they found the problem with our Onan generator right away. They found a hole in the fuel line to the generator. The manufacturer used the wrong type of hose. Fixed it quickly and reasonable price.

[45Ricochet]

Have you ran this combo before? Just a guess here but did you start them in that order? The A/C will draw a bunch of power when you start it up then it will need less voltage when running. Someone was mentioning last week how much it takes for a coffee maker to run off his inverter, I was surprised.

[Blackdiamond]

Check the transfer switch connections.

[wolfe10]

If, indeed "not enough power" is the problem, as with any diesel the first two things to check are fuel and air.

Fuel filter should be changed. Have also seen a number of air leaks into the fuel system (bad seals on filter, loose fitting, cracks in fuel line from tank, too low a fuel level in the tank).

Air is the other thing your diesel needs-- check condition of air filter.

[2oldman]

If you start those 3 items in that order, there isn't enough power left to start the air con, which takes a whopping amount of power to get started.

If you've done this in the past without problem, then the generator needs servicing.