Why can't I set my Honeywell TB7220U Thermostat to cool?
If you're unable to adjust the system setting to Cool on your Honeywell Thermostat, it's likely because the System Type (ISU 0170) is set to Heat Only or Heat Only with Fan. To resolve this, set the System Type (ISU 0170) to match the installed heating and/or cooling equipment.
Why is 'Heat On' not showing on my Honeywell TB7220U Thermostat display?
If 'Heat On' is not displayed on your Honeywell Thermostat, it could be because the system setting is not set to Heat, and/or the temperature setting is not set above room temperature. Adjust the system setting to Heat and ensure the temperature setting is higher than the current room temperature.
Why is 'Cool On' not showing on my Honeywell Thermostat display?
If 'Cool On' is not displayed on your Honeywell Thermostat, it could be because the system setting is not set to Cool, and/or the temperature setting is not set below room temperature. Adjust the system setting to Cool and ensure the temperature setting is lower than the current room temperature.
General| Brand | Honeywell |
|---|---|
| Model | TB7220U |
| Category | Thermostat |
| Language | English |
Defines the four daily schedule periods: Occupied1, Unocc1, Occupied2, Unocc2.
Step-by-step guide on how to modify thermostat schedule settings.
Instructions for viewing and making changes to a single day's programmed schedule.
Configuring time, system mode, and fan operation.
How to override programmed temperatures and set holiday schedules.
Understanding fan operation indicators and symbols on the main display.
How the thermostat displays indoor temperature from remote sensors.
How to view the current outside temperature on the thermostat.
Explanation of thermostat's key control locking features and modes.
Details on Partial Lockout 1 and Partial Lockout 2 configurations.
How the thermostat automatically brings space to temperature before scheduled time.
Procedures for setting the thermostat's internal calendar and clock.
Configuring year, month, and day for the thermostat's calendar.
Settings for schedule options, display units, and daylight saving time.
Setting the time format and number of programmable periods per day.
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