Do you have a question about the TXU Energy iThermostat 1F88-300 and is the answer not in the manual?
Step-by-step guide for manually programming heating and cooling schedules, including setting temperatures and start times.
Explains how to override heating or cooling programs with temporary or permanent holds.
Guide on how to enter the Configuration Menu by setting the system to OFF and pressing specific buttons.
Configuration for Heat Pump or two-stage heat/cool systems, with options like MS2, SS1, HP2, HP1.
Setting the number of programmable periods per day (4, 2, or 0) for flexible scheduling.
Troubleshooting steps for a blank or flashing iThermostat display.
Troubleshooting common programming issues like temperature limits, disappeared programs, and incorrect timing.
Steps to resolve incorrect temperature readings, including checking display mode and hold status.
Diagnosing and resolving issues with house temperature being too warm or too cold.
Troubleshooting when the current setpoint doesn't match the displayed temperature.
Troubleshooting problems with hold overrides not working or temporary holds disappearing.
Troubleshooting common equipment issues such as fan not turning off, on, or heat/cool not activating.
Resolving issues where temporary hold settings or temperature adjustment buttons are unresponsive.
Steps to diagnose why the cooling system is not activating, checking modes, breakers, and setpoints.
| Model Number | 1F88-300 |
|---|---|
| Hold Feature | Yes |
| Filter Change Indicator | Yes |
| Type | Programmable |
| Power Source | Battery |
| Programming | 7-day programmable |
| Warranty | 1-year limited |