RLyons
Senior Member
- Location
- Changed for anonymity
This is a house we roughed and during the trim I was told people have been shocked from the foil insulation in the basement and the ductwork.
HVAC guy used a idiot tester to find it was the garage lighting circuit. I turn the circuit on and get 120v to ground (using dmm) touching either the insulation or ductwork. Yes the ductwork and insulation contact each other in random places.
I followed the homerun in basement from panel, along microlam, up laundry room wall to attic then dropping down to a 3 gang switch at the garage/house door.
I see no ductwork in either wall that I can see unless there is a jog somewhere.
Disconnect all the wires in the switch box and found that once the outside garage lights were removed the voltage was gone. There is no ductwork or foil insulation in the vicinity of this switch leg how could It possibly be getting any voltage? :dunce:
HVAC guy used a idiot tester to find it was the garage lighting circuit. I turn the circuit on and get 120v to ground (using dmm) touching either the insulation or ductwork. Yes the ductwork and insulation contact each other in random places.
I followed the homerun in basement from panel, along microlam, up laundry room wall to attic then dropping down to a 3 gang switch at the garage/house door.
I see no ductwork in either wall that I can see unless there is a jog somewhere.
Disconnect all the wires in the switch box and found that once the outside garage lights were removed the voltage was gone. There is no ductwork or foil insulation in the vicinity of this switch leg how could It possibly be getting any voltage? :dunce: