In Case Of Difficulty - Honeywell VisionPRO TH8000 Series Operating Manual

Operating Manual

In case of difficulty

If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank
No response to
key presses (or
temperature will
not change)
Backlight is dim
69-1894EFS—03
batteries are correctly installed (see page 20).
batteries are correctly installed (see page 20).
remains on at a low level, and brightens when a key is pressed.
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