Pick one: it's freezing/sweltering out, and you're a)
turning into an ice sculpture; b) sweating like a fiend.
Before you throw in the towel and make a service call,
make sure the problem isn't something you can fix yourself
– like a simple glitch with your thermostat. Here's what
you need to check.
Turn off
power to the heating/air-conditioning system at the main
service panel. Remove the thermostat cover plate.
Remove the
thermostat body by loosening the mounting screws with a
screwdriver.
Inspect the
wire connections on the thermostat base. Reattach any
loose wires. If the wires are broken or corroded, they
should be clipped, stripped, and reattached to the screw
terminals. Replace the thermostat body and cover plate.
Restore power at the main service panel.
Turn off
power to the heating/air-conditioning system at the main
service panel. Remove the thermostat cover plate.
Remove the
thermostat body by loosening the mounting screws with a
screwdriver.
Inspect the
wire connections on the thermostat base. Reattach any
loose wires. If the wires are broken or corroded, they
should be clipped, stripped, and reattached to the screw
terminals. Replace the thermostat body and cover plate.
Restore power at the main service panel.