To erase all programming and return to default:
To restore all settings to default:
Even reliable digital thermostats can act up. Here are solutions to frequent problems. intronics digital room thermostat user guide
| Problem | Possible Cause | Solution | |---------|----------------|----------| | Blank display | Dead batteries or tripped breaker | Replace batteries (AA/AAA). Check circuit breaker. For hardwired, check C-wire connection. | | Heating won’t turn off | Stuck relay or wrong mode | Check if mode is set to HEAT (not ON). Turn off at breaker for 2 min to reset. If persists, replace thermostat. | | Display shows wrong temp | Direct sunlight or draft | Relocate or use calibration feature (see section 6B). | | Thermostat clicks but no heat | Wiring loose or boiler issue | Check wire at COM and NO terminals. Verify boiler has power. | | Schedule not running | Thermostat in Manual mode | Press MODE until AUTO or P appears on screen. | | Low battery icon flashing | Batteries under 20% | Replace within 2 weeks to avoid memory loss. | | E1 or E2 error code | Sensor failure (internal or floor) | Reset thermostat. If error returns, replace sensor or unit. | To erase all programming and return to default: