OpenSprinkler › Forums › Hardware Questions › Add MOV to 26VAC input Pins? › Re: Re: Add MOV to 26VAC input Pins? July 1, 2013 at 3:32 pm #23517 COsgoodParticipant @Ray That fixed the problem. I can open at least 3 valves at the same time. No crashes. Thank you. What is the consequence of a jumper on this fuse?