Every once in a while my door bell does not work and doesn't seem to
get power. Usually it is working again on its own a few hours later.
The last time I noticed it was not working, I wiggled the wires on the
transformer to see if they were loose and it started working again, so
I tightened the screws on the transformer, but then it quit, so I
wiggled the wires again and it has been working since. If it is a bad
connection, why can it go for months or even years without a problem?
The transformer is in a place where nothing ever makes contact with
Mechanical doorbells can be very intermittent mechanically. I
have seen several that would work perfectly and then, would
either not sound at all or would chime only one of the chimes or
would just clack and no chimes. But it still could be electrical.
Tony Hwang wrote:
My first guess would be a broken wire somewhere close to the
transformer. The insulation holds the ends of the wire together most
of the time, but something - a temperature or humidy change, maybe -
changes the tension on the wires and they pull apart. Alternately,
the break is on the transformer side of the terminal screws. In that
case, if you could open the transformer, you might be able to clip
the wires, clean off the ends and resolder them.
I'd test the transformer with a light bulb the next time the bell fails;
that will tell you if it's in the wiring or the transformer. A bulb of
12-24V will do, or five miniature Xmas light bulbs wired in
series (most are 2.5-3.5V). -Wm
Just wandering through and opened your question..... very likely you can
save a lot of nit-picking headaches by simply buying/installing a new
transformer followed by a re-wire if that doesn't cure the problem.
Admittedly, I haven't bought a bell transfo in probably 20 years, but
I'm pretty sure the little buggers haven't gone up in price *THAT* much <G>!
God Bless... Mark Hein Cleveland Heights, Ohio
Web Site; http://www.houseofhein.com
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