On Tue, 7 Mar 2017 12:33:07 -0500, Ed Pawlowski wrote:

On 3/7/2017 12:18 PM, Bob wrote:
Why does the temperature in my house drop to 68 degrees when the "Heat" setpoint on my programmable thermostat is set to 80 degrees?


Didn't we do this a month ago?

I seem to recall that it was.

Defective thermostat
weak battery
defective limit switch
not programmed properly
doaen oter potential issues

Pull the T-stat mount and check for a larger than necessary hole for
the wire in the drywall. Drywall guys knock a hole with a hammer.
Temps in the wall cavity can make the T-stat act strange. Seal the
hole around the wire with drywall mud or caulk. Mount the T-stat and
try a factory reset default setting.

Faulty T-stat wire? Faulty transformer?