To Next PageTo Next PageWhy is my Honeywell Thermostat heat pump blowing cool air in heat mode?
To resolve the issue of your Honeywell Thermostat's heat pump blowing cool air in heat mode and warm air in cool mode, check Installer Setup Number 2, Heat Pump Changeover Valve, and ensure the setting matches the changeover required by your heat pump.
Why isn't the fan turning on during heating with my Honeywell RTH5100 Thermostat?
If the fan isn't turning on when heat is called for (electric furnaces only) on your Honeywell Thermostat, check Installer Setup Number 3, Fan Control in Heating, and ensure it is set to Electric Heat (Setting 1).
General| Type | Programmable Thermostat |
|---|---|
| Display | LCD |
| Temperature Range | 40°F to 90°F |
| Power Source | Battery |
| Compatibility | Single Stage Systems (Heat & Cool) |
| Schedule | 7-day programmable |
| Voltage | 24VAC |
| Battery | 2 AA batteries |
| Weight | 0.5 lbs |
Identifies the physical components of the Honeywell RTH5100B thermostat.
Explains the meaning of various icons and indicators shown on the thermostat display.
Instructions for selecting between Heat, Off, or Cool modes for the HVAC system.
Instructions for selecting the fan operation mode, Auto or On.
Guide on how to change the desired temperature using the up and down buttons.
Information on cover plates used to conceal wall marks, including part numbers.
Part number and ordering information for a replacement battery holder.
