A snow drift blocked the outside vent and our Ruud Power Vent 2 water heater quit. The led indicator flashes 4 times, and the key interprets this as "press SW open". What do I do?
I turned the gas off at the control panel of the water heater for now. What next?
Thanks, I'll try it
Killed the power. Plugged it back in and the vent motor started up, and then continued to cycle on and off. Finally it shut down again and started giving me the same 4 led flashes. I went back outside to the vent that had been covered buy the snow drift, unhooked the elbow pvc, and there was snow blocking the pipe--the wind must have pushed it up in there. Unblocked it and unplugged it and it started right up. Thanks a million!