Water heater won't fill
I have a 1998 GS 22’ Conquest. I just replaced the 6 gal Suburban water heater with the same model, also replaced the check valve. Connected water, gas and 12v wires. When I turned on the pump. I get water from the faucet but nothing flowing into the water heater.
We have two switches on our control panel, one for the pump and another labeled water heater. I know the system shouldn’t be lit without water in the tank, but I’m assuming it should still fill when empty. I did turn the "water heater" switch on for a moment and it lit the burner. I turned it off right then.
I disconnected the cold water pipe to the unit and it was dry.
I'm assuming it should start filling when the pump switch is activated?
Any ideas for next steps?