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Does the gas valve have 2 arrows to set the water temp? if so which LED's are lit besides vacation?
I'm sorry I was offline when you requested the phone call. Try this; unplug the unit wait a minute then plug it back in. Let me know what happens; does the fan start up? do you see a glow from the burner compartment? does the burner ignite?
I'm online most of the day today until ~ 7 pm EDT if you still want a call let me know