Our gas fired Trane (model unknown but older) reaches temp set on
thermostat but does not restart when temp falls below setting. Learned
a trick a long time ago of switching thermostat to Off for 10 seconds,
then back to Heat will sometimes work. This trick is doing it here,
but getting pretty danged tired of getting up in the middle of the
night in a 50 degree house to get the heat started again! Changed out
the old theromostat (cicular dial mercury type) with a new programmable
one, but problem persists. Anything I can do myself to check out the
outside unit before committing a month's paycheck for a service call?
Just bought this house (built in 1940) with a Trane unit that is less
than 10 years old. More specifics available once it gets warm enough
for me to venture outside again!
Best long distance guess is it's overdue for its annual service by
several years. Or you could install a timer to turn the power off and
on to the furnace every half hour or so.
On 10 Dec 2006 04:28:07 -0800, "HomeownerRetArmy"
\'Humankind cannot bear very much
reality.\' - T.S. Eliot
On my Trane unit, this means the controller has detected a FAULT and
shut down. Turning it to off resets the controller. Can you get the
fault code? My thermostat has a light that blinks with the fault code.
You shouldnt have changed out the stat with a digital. Those10 yr old
Tranes work better the round Honeywell type. Get a new one. You might
need to change the low voltage wiring bundle too. The unit can get out
of phase with with a new digital stat so you need to change it back
along with the new low voltage wiring.
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