30 amp breaker is OK Problem (Ithink) was a locked comp. due to thrmostat
failure. I don't get vibe as to a short.
Thanks for your input
Franl
"Pop" wrote in message
...

"KTECH" wrote in message
...
Thought some of you might add to this/
Came home from work 5:30 PM Monday,no power.
Found 100 amp breaker tripped re-set all OK
Same thing Tues.
Same thing Wed. after checking lines etc and again taking whole house
amps (Max38w/ air on and fridge on.
On way back up I was resetting clocks when I noticed they all stopped at
the same time.After checking my setback thermostat sure as hell main
tripped at program change.Went to held temp. problem solved. Still a
little miffed that 30 amp air breaker held and 100 amp opened.
Frank


Apparently you found the source of the problem if I read it right?

It's possible the reason the 30A didn't open but the 100A did was, because
the 30A is a time-delay breaker? The 100A, not being time delay, could
open before the 30A in that case. In which case, it did its job.
OR
Is it possible the 30A breaker was welded closed by the short? Very, very
unusual, but possible. If so, you wouldn't be able to turn the breaker
off and then back on or if you were able to, it may not turn back on.

So if the 30A isn't a time-delayed breaker, I think I'd check to be sure
it's operational. It may not be able to open.

Probably worth looking around where the short occurred and at the panel to
be sure no insulation melted, etc.. Any odors around that are new?

Just a couple thoughts; lots of possibilities, but those come to mind
first.

HTH,

Pop