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wiring of oil furnace on/off switch
Not sure this is the right sub-forum to ask. Since it has to do with electrical, Controls seemed a reasonable place to ask.
The oil company installed my oil boiler and water heater (Buderus Logano and Logalux LT). I know only a little about electrical wiring but it seems to me the unit may not be properly grounded. Certainly the green wire is not attached to the green screws of the switch or the outlet, or to the box itself. Also, I don't see the green wire passing through to the little control box. Only black and white wires go to it. I've attached some pictures. And the green wires near the controls are wrapped like vines around the other wires and are clearly not connected.
The Logalux manual says to make sure the unit is properly grounded or tank damage can occur. How is the ground passed through from the on-off switch down to the tank if if the green wire isn't passed through to the little control box?