Brand: bryant
Category: Thermostat
Manual Type:
Language:
Manual for T2-NHP, T2-NAC - Troubleshooting and error codes + PDF Download
Uploaded: April 7, 2025, 8:11 p.m.
Manual Publish Date: 2012-05-01
Warranty Summary
Bryant warrants this thermostat against failure due to defects for a warranty period of 5 years from the date of original installation.
Setting Temperature: Use the mode button to select Heat or Cool. Use up/down buttons to adjust the set temperature.
Using Fan: Press the fan button to select 'on' for continuous fan or 'auto' for fan during heating/cooling.
Emergency Heat (Heat Pump): Select 'Em heat' mode for emergency heating in heat pump systems.
Turning System Off: Select 'off' mode to turn off the heating and cooling system.
Troubleshooting and error codes
| Problem | Solution |
|---|---|
| Battery icon is displayed | Replace batteries. |
| "Aux heat on" is displayed | System is using auxiliary heat automatically. |
| "Em heat" is displayed | Emergency heat is manually turned on. Turn it off if not needed. |
| There is a power outage | Thermostat will display temperature if batteries are installed. System will not operate. |
| System error message (--, E4) | --: Room air sensor error. E4: Memory failure. Contact dealer. |
Troubleshooting and error codes
| Problem | Solution |
|---|---|
| Battery icon is displayed | Replace batteries. |
| "Aux heat on" is displayed | System is using auxiliary heat automatically. |
| "Em heat" is displayed | Emergency heat is manually turned on. Turn it off if not needed. |
| There is a power outage | Thermostat will display temperature if batteries are installed. System will not operate. |
| System error message (--, E4) | --: Room air sensor error. E4: Memory failure. Contact dealer. |