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Rich Biebel · 10-07-2014, 03:24 PM

How many hours on it ?

Code 32 points to something that is usually not whats wrong with it from my experience..

Push the start/stop switch to the stop side....that is also Prime when the engine is off. FuelPump should run. Pull line off where it attaches to carb and with switch on stop/prime.....pump fuel into a small bottle. Verifys pump is working and you have fuel in the carb.

If you have fuel and it starts but shuts off when you remove your finger from the switch you probably have lost AC output on that unit...and as I said brush condition/connection is the first place to do some testing.

You have to disconnect the battery + from the solenoid and tape it up so you don't do any 12 volt welding....LOL or start a fire.....

You need to remove the plate where the solenoid is mounted.
It's a struggle but that all comes out with the ECU or control underneath it.

It has one weatherpack style connector. Release the lock.....pull the plug out....

Pins #1 and #10 on the connector will be from the brushes.....
The wires are all white....and printed right on them
F- and F+
An ohmmeter with stab probes into the connector at those 2 positions should show you about 20-24 ohms.....and as I said if you reach in and rotate the blower wheel by hand.....that reading should not fade or go high.

If you get good readings your problem may be the controller (PC Board) or something more serious like a stator or even the rotor....

Ohm readings help but don't always tell you whats wrong.
Often they need to be disassembled to visualy find the problem....

An Onan needs a battery connected to it to run......If it is good enough to crank it, it is good enough for it to stay running.

Battery going dead is a separate issue not related to it "won't stay running"
4KY's have no battery charging built in.
A separate charger or converter is necessary to charge your "house" or starting battery.
M-H's generally have a DC converter and they charge the battery as well as run your DC items in the M-H...mostly lights and vent fans...

I have a 4 KY in my trailer. I have a small 6 amp Battery Charger that charges my battery when the generator is running....

10-07-2014, 03:24 PM	#10
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,315 Likes: 25 Liked 544 Times in 213 Posts	Re: Help How many hours on it ? Code 32 points to something that is usually not whats wrong with it from my experience.. Push the start/stop switch to the stop side....that is also Prime when the engine is off. FuelPump should run. Pull line off where it attaches to carb and with switch on stop/prime.....pump fuel into a small bottle. Verifys pump is working and you have fuel in the carb. If you have fuel and it starts but shuts off when you remove your finger from the switch you probably have lost AC output on that unit...and as I said brush condition/connection is the first place to do some testing. You have to disconnect the battery + from the solenoid and tape it up so you don't do any 12 volt welding....LOL or start a fire..... You need to remove the plate where the solenoid is mounted. It's a struggle but that all comes out with the ECU or control underneath it. It has one weatherpack style connector. Release the lock.....pull the plug out.... Pins #1 and #10 on the connector will be from the brushes..... The wires are all white....and printed right on them F- and F+ An ohmmeter with stab probes into the connector at those 2 positions should show you about 20-24 ohms.....and as I said if you reach in and rotate the blower wheel by hand.....that reading should not fade or go high. If you get good readings your problem may be the controller (PC Board) or something more serious like a stator or even the rotor.... Ohm readings help but don't always tell you whats wrong. Often they need to be disassembled to visualy find the problem.... An Onan needs a battery connected to it to run......If it is good enough to crank it, it is good enough for it to stay running. Battery going dead is a separate issue not related to it "won't stay running" 4KY's have no battery charging built in. A separate charger or converter is necessary to charge your "house" or starting battery. M-H's generally have a DC converter and they charge the battery as well as run your DC items in the M-H...mostly lights and vent fans... I have a 4 KY in my trailer. I have a small 6 amp Battery Charger that charges my battery when the generator is running.... __________________ Rich Biebel S/C 1479 Stock 147R Last edited by Rich Biebel; 10-07-2014 at 03:34 PM.