On Dec 28, 2:00*pm, "." wrote:
For my thermostat, there's a "COOL" and a "HEAT" mode for "MORNING", "DAY", "EVENING" and "NIGHT".

In the middle of winter, I don't want "COOL".

How do I programming it for "HEAT" only?

Didn't the thermostat come with an instruction book, or if not, did
you contact the manufacturer?????