Why is my propane generator backfiring?

Why is my propane generator backfiring?

You most likely have a carbon build up that will continue to hold heat and glow beyond a previous power stroke. This burning carbon will ignite the incoming air/fuel mixture before the intake valve closes and the result is the backfire.

What do you need to know about an Onan generator?

Before any evaluation of the controls, regulator or generator can proceed, the Onan engine must have oil and fuel, be in running condition and the 12-volt battery charged. The electronic governor, 151-0752, on Models BGM and NHM, Spec B and later, must be functioning properly.

Are there any Onan Gurus on RV.net?

Also, over on RV.Net, there are two onan guru’s. When you post your problem, make sure you have your full model number, serial number and build date. I promise you will have an answer by the morning!!!! :B I looked on there and didn’t find anything, but maybe I’ll post something up. Fuel pump makes sense.

What happens when you start a generator in an RV?

This is what normally happens when you start your genset. Pressing and holding the start switch causes the control board to send 12 volts to the ignition, fuel pump, choke heater, start solenoid and field flash circuits. The engine then cranks and starts. Oil pressure and generator voltage build up within 1-2 seconds.

What does the RV Generator Control Board do?

Note: While this troubleshooting guide is applicable to most makes of RV Gen Sets, there are many specific refer- ences to particular Onan®Models as these widely used RV Generators are the brand we (Flight Systems) provide replacement control boards, voltage regulators and test equipment (the G-MAN) for. What the Engine Control Board Does

How can I get service on my Onan generator?

Onan is relying on network of contracted dealers to provide service for most of their RV generators. Service levels vary between mechanics and RV shops. Do your research before you bring in your RV for service. And verify that the RV shop is experienced working with Onan Cummins generators.

What kind of gas does an Onan generator use?

RV manufacturers like Onan generators so well that they put them stock in all of their units that come with a generator. Onan generators are able to run on gas and also lp gas.

Why does my Onan generator keep backfiring?

It ran great. Then it chugged for a split secoond a couple times, then about 10 seconds later it backfired then died. Now it fires up no prob with the usual pop or two right after startup, but as soon as I turn on the AC unit (or any other heavy load) it bogs and backfires bigtime.

Also, over on RV.Net, there are two onan guru’s. When you post your problem, make sure you have your full model number, serial number and build date. I promise you will have an answer by the morning!!!! :B I looked on there and didn’t find anything, but maybe I’ll post something up. Fuel pump makes sense.