W e have a brand new 2026 Valor 44V14 and the water heater stays in a fault condition on gas. Replaced a faulty (new) thermostat and cleaned/checked everything, still slow to light and faults. WTH?
Silly question but is it confirmed you have propane? Do other gas appliances work as normal?
This happened to us the first time we switched to the second propane tank (dealer was supposed to turnover with two filled tanks) - the second one was not and the furnace would not stay on (obviously)
Ours will show fault until I bleed the fuel line by lighting all burners on stove and the oven. Then I switch on the gas water heater switch. Operates normally, mostly, after that.