Cannot start engine

[oldcoot]

I have 2095 Fleetwood 39S Providence, there is a 5 amp fuse in the fuse block that blows as soon as you put it in. When I turn the ignition on the glow plug light does not come on and when you turn the ignition key to start nothing happens
Check the engine compartment and found a nest on top of the engine but cannot see any wires chewed up
Any ideas on what could be wrong

[wa8yxm]

5 amp fuses are usually control circuits
For example the step CONTROL switch
The battery Disconnect solenoid
It isolator solenoid
All have 5 amp fuses

There may be other 5 amp circuits as well.

[jdc1]

Was that nest made from the wiring harness? Ugh.

[wolfe10]

Welcome.

Please "edit" your post to tell us what year (not 2095) and what engine you have.

Does the Allison shift pad illuminate when the key is turned on?

[2bzy2c]

Sorry that happened to you. The nest is certainly a good clue. It happened to me in the past. I just had to get a test light and start at the battery and trace the power to all components. I know it sounds time consuming, but there is little else you can do.