If the lights just dim and none of the other lights get brigher, I
would look for a loose/bad connection. Start with the breaker for those
lights. Then check where the wires may be joined together.
If at anytime some of the lights get brighter than normal, then look at
the neutral at the main breaker box.
Most likely you have a loose connection in your wiring. It could be
related to just one breaker, or it could be the connection of one side
of the 240 Volt line feeding your breaker box.
Either way, this might cause flickering, or might cause overheating of
the connection which could start a fire.
On Saturday, April 30, 2016 at 1:51:11 PM UTC-4, email@example.com wrote:
Sure if the other ones are downstream and there is a loose connection
all the lights from that point on would be affected. First thing is
to figure out if all the flickering ones are on the same breaker.
Whatever it is needs to be fixed, because a bad connection can get
hot, arc, cause a fire.
On Sat, 30 Apr 2016 08:50:03 -0700 (PDT), firstname.lastname@example.org wrote:
You said "SOME" lights. Are all of them on the same switch? Could be a
bad switch. If more than one switch is involved, make a list of all the
lights that dim, and see if they are all on the same breaker. If they
are, replace the breaker and see if that fixes it. If not, you have a
loose connection somewhere, and you'll probably have to take apart every
device on the affected circuit(s), and look for loose or burnt
You are aware that loads which draw heavy currents, such as
refrigerators, pumps, and so on, can and do cause a small amount of
flicker when they start. That is fairly normal, but the amount of
flicker is minimal under normal conditions.
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