[nota]

My Convection Oven is shocking
and has a 2 wire plug no ground

so I pulled out the VOM and found 118 volts on the metal frame to a ground wire
on a 3 wire ext-cord
but the VOM shows no connection to the frame
between the two hot leads and the frame it reads open

looked for obvious shorts or other problems
none found

then the real puzzler
when I turn on the oven
the voltage drops to 44 volts on the frame
while the oven appears to work fine

thought of adding a ground
but something ain't right
and I need to figure it out before adding grounds

it is a larger made in USA 18 X 12'' unit very had to find anymore
the stores have far smaller ones

how are the volts leaking to the frame when the VOM shows no continuity
why do the volts drop drop when running