lost both temp gauges at same time

[phillid]

2005 SAN 210 excalibur, around 490 hours

Guys or gals, while out last evening testing out a new low pressure fuel pump I suddenly lost my entire tach and the other temp gauge. I shut it down for 5-10 minutes to check some things and after starting back up I had this:

1. Separate temp gauge is dead
2. The RPM dial works intermittently, sticking in place at its last reading
3. On the tach I have zero engine hours, zero hours remaining and zero engine temp, I have reading for oil pressure and voltage

I'm nervous of having no engine temp gauge and also concerned what the underlying issue is causing me to lose ET gauges both at once. Considering I replaced my engine temp and fuel gauges back in 2017 I don't think it is the gauge. Could it be the gateway I keep reading about or do I have a lost engine temp signal causing me to lose ET on both gauges?

[phillid]

was my gateway box, got it dried out, cleaned up and all is running good.

[Skidave]

How did it get wet?

Sent from my SM-J337V using Tapatalk

[phillid]

water up through the speedo pitot tubes into the box and all over the circuit board causing corrosion.