Riddle me this...
I have a fan/light combo unit controlled by a standard toggle wall
switch. The unit is well over 20 years old.
4 position pull chain for fan - high, medium, low, off
4 position pull chain for 4 bulb fixture - 2 on - 2 off, swap the offs
for ons, all 4 on, off.
Here's the problem:
If all four lights are off, the unit makes a single POP when I throw
the wall switch to the off position. The sound comes from the unit,
not the switch.
If any of of the lights are on, I do not hear the POP when I throw the
The position of the fan chain does not appear to matter. Regardless of
what speed the fan is running at (including off) the POP only occurs
when all four lights are off.
Since there is no current flowing in the light portion of the unit
with the light chain in the off postion, why would it pop when power
is cut off?