Model of this unique gas only converted electric water heater???
6 gal 8E/9E or 10 gal 3E versions have separate controls for gas and electric
Electric has its own set of t-stats for temp control on backside along with the element (and the OEM On/Off Switch)
*120VAC from 15A CB to high temp t-stat to t-stat to element (black wires) then back to AC power panel on White wire (neutral)
High temp t-stat has manual reset.....which means t-stat failed
If 6 gal GC6AA-10E or 10 gal GC10A-4E models (new version in 2004)
Both gas/electric use DC for controls. one set of t-stats
Electric uses a DC Relay on backside of tank to trigger the 120VAC to element
*DC from circuit board to DC relay via YELLOW wire
Bad DC Relay...no 120VAC to element
So MODEL number (on label in outside compartment) is helpful
And if GAS only converted to AC Element...then aftermarket element installed in the drain plug with its own set of T-stats which should have a resettable High temp t-stat
*Nothing to do with function/operation of GAS
Side Note: Owners Manual for Allegro Bus shows 10 Gal Gas/Electric Combo Water Heater (GC10A-4E)
So it would use a DC Relay
https://tiffinmotorhomes-rcgarkskyk9...llegro-Bus.pdf