FYI
Turns out the problem was nothing but a blown fuse in the fuse box that
feeds the sub panel.
But here's the kicker.
My insurer had demanded a home inspection last year. One of the things he
required was that 20 amp fuses be replaced with 15's. The electrician I
called (to replace a $#@%@4!&&! fuse it turns out) told me the circuit
(which feeds baseboard heaters) is wired for 30 amps and there should be a
30 amp fuse in the block.
So I should send the electrician's bill to the inspector, right?
Yeah, sure...
ds


"Dick Smyth" wrote in message
...
This one has me stumped.
I have a subpanel which feeds both the electric heat upstairs and the
power to a recent house addition.
I recently accidentally tripped the breaker for the addition. It would not
reset. There is no short or overload; not a case of the breaker tripping
again. The switch stayed in place when reset but there was no juice. I
even replaced it with a new breaker. (I subsequently found there was
nothing wrong with the original one.) I determined that there is power in
the box. I re-inserted the breaker in another bay in the box and
everything works fine.
Except the heaters which are on the other two breakers. They're doing the
same thing as the original breaker did. They're not tripped but they are
not passing power either.
So there is power on the bus bar, the two heater breakers are properly
wired and are not defective. There is no problem with the house wiring or
the thermostats. (Unlikely that three of them would fail at the same
time.)
So how come the heaters don't work?
My only guess is that somehow the breakers are not making proper contact
with the bus bar. .
The electric heat is seldom used although one heater worked as recently as
October.
It is a Square D installation.
Thanks
ds




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