10
Installer system test
To perform a System Test:
1 Press and hold
CENTER
and buttons for
approximately 3 seconds to enter advanced
menu.
2 Use to go to
TEST
. Press
Select
to enter
System Test.
3 Use to change between Heat, Cool, Fan, Em
Heat, or Ver (thermostat version information).
Press
Select
.
4 Press to turn stages on one at a time, and
press to turn them off.
5 Use the
Home
button to exit the System Test.
System test
System status
Shaded areas below apply only to
TH6320U/TH6220U
or as otherwise noted.
Heat
0
All Off
1
Heat Stage 1 on
2
Heat Stage 2 also on
3
Heat Stage 3 also on
Cool
0
All Off
1
Cool Stage 1 on
2
Cool Stage 2 also on
Em Heat
0
All Off
1
Em Heat on
Fan
0
Fan Off
1
Fan On
