I have a 2020 sw6de hot water heater. It is LP and Electric.
Electric is fine, no issues.
LP lights, makes a tank normal, then after a minute of finishing the hot cycle it tries to relight...does this 3 times in a few minutes then goes into lockout. It knows it has a full hot tank and that's where my issue is. Something is calling for hot water then something says we have hot water.
If the tank empties it will not turn back on until I reset the power off then back on.
I changed the board(Dinosaur), thermostat and still does it.
It always makes 1 tank then lockout.
Anyone have any idea what else I can look at???
Wifey is not too happy and wants me to just put in tankless, so if I can fix this and she at least gets rejuvenated water continuous then she may be ok
Ideas on what to check next welcome.