Trouble shooting a ground fault on a Siemens fire alarm panel

Trouble shooting a ground fault on a Siemens fire alarm panel. Found on water flow.
See the tools I use:
• Fire alarm tech tool p...
See me replace a pull station:
• Changing a zone fire a...
See me replace a smoke detector:
• Replacing a simplex zo...
See me install a nac panel
• Install nac panel part1
• Part 2 nac panel install.
• Final video of nac ins...
Aluminum melting furnace build:
• Building an aluminum m...
• Part4 of casting alumi...

[@dagconst1]

Nice find , I’m trying to find one in a high school with 30 horn/strobes on loop , I’m basically pulling every H/S and inspecting wires ...

[@Sully380]

Dude that was an easy one, good find though... I am currently on one on an MXL ALD 1 ground fault. Maybe I should shoot it. Don’t think this one is gonna be easy though!!!

[@ZakWolf]

Yeah, I think Siemens has gotten pretty lousy ever since the Wheelock lawsuit. It's gotten to the point where they've gotten as bad as EST, if not worse!

[@ruben5081]

Would the ground fault show up if one of the data loop wires was touching ground?

[@khawk7365]

Yes.