Sandman
New member
I'm having an issue with the aft head vacpump somehow shorting out the Tank monitor at the electric panel. Then no lights and both heads have red lights and unable to flush. My marina thought that it was caused by a faulty Vac switch but realized that when the connector to bring power to the pump motor was disconnected, the monitor lights came back on and the forward head turned green. They checked the relays behind the tank monitor and all was ok. Getting schematics from TAG shows a circuit board that seems to control the system but no hint as to where this may be. TAG is off this week so no one to talk to about this directly. Has anyone had this issue or know where this "brain" my be installed?