Honeywell TB7220U1012 Owners Guide - Page 28

Frequently Asked Questions and Answers

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Page 28 highlights

Frequently Asked Questions and Answers Q: When making changes, the wrong setting is being changed; Why? A: Whatever is flashing on the screen is the item that the up and down buttons affect. Q: The keys (some or all) do not work; why not? A: Thermostat is locked. See Locked Keypad sections. Q: Backlighting seems dim; is it designed to be dim? A: When using batteries for power, install fresh AA alkaline batteries. Q: Thermostat is asking for heating or cooling to come on (screen shows "Heat On" or "Cool On" in display) but there is no heating or cooling running. A: Call your local heating and/or cooling contractor to check your system. Q: Why doesn't the thermostat respond when I press a key? A: Check to determine if the device is in the Locked mode. See Locked Keypad sections. Q: Why doesn't the fan run when the thermostat indicates "On"? A: If the mode is Unoccupied, the fan control is the same as with the "Auto" setting. This is true even when the display indicates "On". 28 63-2626

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63-2626
Frequently Asked Questions and Answers
Q:
When making changes, the wrong setting is being changed; Why?
A:
Whatever is flashing on the screen is the item that the up and down buttons affect.
Q:
The keys (some or all) do not work; why not?
A:
Thermostat is locked. See Locked Keypad sections.
Q:
Backlighting seems dim; is it designed to be dim?
A:
When using batteries for power, install fresh AA alkaline batteries.
Q:
Thermostat is asking for heating or cooling to come on (screen shows ±Heat On² or
±Cool On² in display) but there is no heating or cooling running.
A:
Call your local heating and/or cooling contractor to check your system.
Q:
Why doesn´t the thermostat respond when I press a key?
A:
Check to determine if the device is in the Locked mode. See Locked Keypad sections.
Q:
Why doesn´t the fan run when the thermostat indicates ±On²?
A:
If the mode is Unoccupied, the fan control is the same as with the ±Auto² setting. This is
true even when the display indicates "On".