Branson 2400H fuel shutoff solenoid troubles

[HIITMan]

According to the manual I am referring to the stop relay should have these color wires going to the socket.

Red w/ blue stripe = Hot wire for the relay coil

Brown = ground for the relay coil. This one goes to the controller that you verified earlier is working on that end.

Red w/ black stripe = Hot wire coming from fuse number 4

Blue w/ yellow stripe goes to the hold side of the stop solenoid.

After turning switch to start and back to on, check for power on the Red W Blue Stripe wire. This should be done with light clamp on a good ground.

Then confirm the Brown wire is giving the signal by checking power with the light clamp on the positive side of the battery.

If the light comes on for both test above then the relay should energize. You should be able to feel the click if it is hard to hear over the other relays. If one of the test fail you need to trace that wire back to the control or fuse.

Next test is to test Power on the Red w/black stripe. This is done with the test light clamp on a good ground.

Then test power on the Blue w/ yellow stripe. Again the light clamp should be on a good ground.

If the above test passes, you should have Power as long as the switch remains in the on position. If the first part of this test fails then you need to trace the red w/black stripe back to fuse 4.

If the second part fails the relay is not working and you need to confirm it energized. If it did then the relay needs replacing.

Hope that helps!

I'll give those a try and update.

thanks

 

[HIITMan]

According to the manual I am referring to the stop relay should have these color wires going to the socket.

Red w/ blue stripe = Hot wire for the relay coil

Brown = ground for the relay coil. This one goes to the controller that you verified earlier is working on that end.

Red w/ black stripe = Hot wire coming from fuse number 4

Blue w/ yellow stripe goes to the hold side of the stop solenoid.

After turning switch to start and back to on, check for power on the Red W Blue Stripe wire. This should be done with light clamp on a good ground.

Then confirm the Brown wire is giving the signal by checking power with the light clamp on the positive side of the battery.

If the light comes on for both test above then the relay should energize. You should be able to feel the click if it is hard to hear over the other relays. If one of the test fail you need to trace that wire back to the control or fuse.

Next test is to test Power on the Red w/black stripe. This is done with the test light clamp on a good ground.

Then test power on the Blue w/ yellow stripe. Again the light clamp should be on a good ground.

If the above test passes, you should have Power as long as the switch remains in the on position. If the first part of this test fails then you need to trace the red w/black stripe back to fuse 4.

If the second part fails the relay is not working and you need to confirm it energized. If it did then the relay needs replacing.

Hope that helps!

All of these tests passed except the Blue w/ yellow stripe. No light with test light clamp on ground.

 

[HIITMan]

I should add that if you have uninterrupted power on the blue w/ yellow stripe at the relay you need to trace that wire to the stop solenoid.

Also don’t give up you will find it. Electrical issues on any vehicle can be difficult to locate for anyone. Just be patient, you are gaining on the solution.

With the test clamp on ground, the blue w/yellow stripe had no light at the relay.

 

[K5lwq]

With the test clamp on ground, the blue w/yellow stripe had no light at the relay.

Okay we are getting closer. So you had a light on the Red w/black stripe? If so did you feel or know the relay clicked or energized?

 

[HIITMan]

Okay we are getting closer. So you had a light on the Red w/black stripe? If so did you feel or know the relay clicked or energized?

Yes, had a light on the red w/black stripe. I could feel the relay click.

 

[K5lwq]

Then your problem is the relay is not making contact internally or the red /black stripe is not making connection in the relay socket or the blue w/yellow stripe is not making connection in the socket.

If you remove the relay, look at the terminal where it plugs into the socket for corrosion.

If you made a jumper wire to go from the red/black stripe to the blue/ yellow stripe wire the solenoid should hold in. Just need to figure out how you are losing that connection with the relay.

 

[HIITMan]

I jumped the 2 wires, the solenoid plunger stayed in. I terminals where clean on the relay and the socket. I wired brushed them just the same.

 

[K5lwq]

Then it has to be the relay if you placed the jumper through the socket.

 

[HIITMan]

I jumped the wires without the relay on the socket. Why wouldn't the other relay work when I swapped them?

 

[K5lwq]

I am not sure. It could be bad as well. You are positive the coil side had power when you did the first 2 test?