When motors start, they draw around four times their operating current,
briefly, so dimming is absolutely normal if its contained to the circuit
that the motor is on. When you plug a vacuum into a bedroom outlet, it would
be normal for that bedroom's lights to dim momentarily, if the lights and
outlets are on the same circuit. If the dimming occurs on circuits other
than the one with the vacuum, etc. on it, you may have a wiring problem


"Matthew Plummer" wrote in
message . net...
Hello-

In our current home, anytime we turn on an appliance which draws a
moderate amount of current (vacuum cleaner, TV, etc.) there is a brief
(.5 sec) dimming effect throughout the house. This effect is not limited
to any one outlet.

Our house is relatively new (5 year old) and thus meets modern code
standards. Is the problem related to improper wiring of the electrical
panel, or is it just 'normal' drop when turning on a current drawing
appliance?

Thanks in advance.

Matt Plummer