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mike brez · 09-02-2014, 10:11 AM

While trying to find out why my electric purge valve was not working I found a bunch of fuses in the front compartment kinda under the drivers seat. I have only had this rv for a few days now so not familiar with it at all.
Seems like a whole fuse bank is out. Is there a master fuse/breaker? Hard to see but the middle section is out. Left and right sides are all lit up green.
I ran out of time today so thought I would ask here to get a jump on it tomorrow.

DieselTech39 · 09-02-2014, 10:23 AM

Just a thought....Do you have the ignition key turned on? If not, maybe the middle ones are controlled by turning it on? Could it be they are for the tail/stop/turn wiring? Best of luck on a solution.

Peralko · 09-02-2014, 10:54 AM

We have one column that only comes on with the ignition switch. In ours it is the right column--yours may be different.

deandec · 09-02-2014, 12:37 PM

We have a similar rig.

Center row on the Front Run Board only light with ignition key.

mike brez · 09-02-2014, 01:30 PM

Quote:

Originally Posted by deandec

We have a similar rig.

Center row on the Front Run Board only light with ignition key.

I think you guys are correct. I won't be able to try until tomorrow.
What engine do you have Dean?

deandec · 09-02-2014, 05:14 PM

Cummins C8.3L 300hp.

I just reviewed the wiring schedule for my rig.

There appears to be 4 wires running from the switch to the purge valve.

There is wire 76 blue, connecting in the middle row of front run box fuses, which runs "from fuse to air purge relay" and 76 brown which runs "from relay to air purge switch".

So, if the fuse lights up with the ignition switch, the relay would be the next suspect.

It is in the same electrical compartment as the chassis fuses on my rig I suspect.