2008 206 with Faria GAteway. Alarm Horn always ON, no apparent error message

[PLWSA]

Our club has a 2008 206 with the Faria Gateway guage system, this spring when running the boat the ALARM Horn is constantly on, the red alarm light is not. From what I was told no other alarms show up (depth, fuel, oil pressure...). Boat runs fine, oil pressure is normal, temps are normal.

All was well last fall when it was winterized. Tried pulling the battery for a bit to do a reset.

Looking for some ideas?

[H2O]

Wires to knock sensors reconnected since winterization?

[Quinner]

Had the exact same problem, in my situation it turned out the pitots did not self drain as they were supposed to, as a result water/ice backed up into the circuit board in the gateway and fried it. New Gateway was the fix. After that always removed the gateway during layup and stored in warmth.