20 amp running light/dashboard fuse blows immediately - HELP!

[braduah]

Team...

We are relatively new to RV life. We have a 2017 Forest River FR3 32DS motorhome. It is just over a year old, so I assume the warranty is out for fuse related issues.

Last year, we were on a trip and the 20 amp fuse for the running/dash lights blew. I was able to switch out the fuse and roll on. However, this afternoon, I went to test things out as we are leaving out in a few weeks on a trip and the fuse was blown. I tried to replace several times and it blew as soon as I attempted to turn on the head lights.

I don't have on where to start with investigating. Any help from you experts would be greatly appreciated! Thanks in advance!

[A32Deuce]

Sound like a short in the wiring some where. Try looking at the firewall area where the wires pad through and the area behind the head lamps.

[rk06382]

Originally Posted by braduah

Team...

We are relatively new to RV life. We have a 2017 Forest River FR3 32DS motorhome. It is just over a year old, so I assume the warranty is out for fuse related issues.

Last year, we were on a trip and the 20 amp fuse for the running/dash lights blew. I was able to switch out the fuse and roll on. However, this afternoon, I went to test things out as we are leaving out in a few weeks on a trip and the fuse was blown. I tried to replace several times and it blew as soon as I attempted to turn on the head lights.

I don't have on where to start with investigating. Any help from you experts would be greatly appreciated! Thanks in advance!

Get a 12v probe tester to check the wire for a short. Connect it to 12v and see if the probe lights up. Then you can use the probe to follow the wire.

Amazon: OctagonStar 16012 Circuit Tester 6V/12V DC Systems Long Probe Continuity Test Light Car Voltage

I googled '12v circuit tester how to use' and found this youtube example:

https://www.youtube.com/watch?v=Hqn9mI9zDzQ