Fred Phred
New Member
Hi, I'm recently getting the Eternal GU145 E27 Mixing Valve Initialization Failure a few times each day. Took apart and cleaned the valve. Still get the error. I read on some forum the error is related to the circulation pump. I unplugged the circ pump, and NO ERROR! The heater has worked for years with the circ pump and never had a problem. Anyone have any ideas what's going on here? Thanks!