1970 ONAN RV GENERATOR MANUAL

SOURCE: Onan 4000 RV Generator - where is the oil drain plug?

It should have a cover on the floor bottom that is held in place with two torx (star) screws. remove the cover and you can remove the plug with a 9/16 socket.

Jim London

• 257 Answers
• Posted on Mar 02, 2009

SOURCE: onan microlite 4000 generator no output

Hi, The 4000 rv unit unit is equipped with full diagnostics, and is indicated by the status light blinking. The blinking sequence, blinks a code as to the fault. If your unit runs and the status light is on without blinking, it is either the circuit breaker on the genset or in your distribution panel that needs to be reset. Good Luck, this should Fixya!

SOURCE: 6.5KW Onan generator. wont run when the start button is released

Flight systems can test the onan circuit boards. google them they will come up. First class operation my board was was checked out and back to me in about a week, They also sell new boards and deduct the 20 dollar bench fee if yours is bad and you buy a replacement from them.

SOURCE: Have an Onan RV generator. WHat kind of oil do I

Standard 30W motor oil.

SOURCE: Onan Marquis Indiana 5000 generator

You MAY have blown the rotating diodes on the rotor.

This would require servicing.