Care Guide — Therma One T1

Cleaning the Unit

The T1 display and housing can be wiped with a soft, slightly damp microfibre cloth. Do not spray any liquid directly onto the unit. Do not use abrasive cloths, solvent-based cleaners, or alcohol wipes — they will damage the screen coating and housing finish.

The temperature sensor is located in a small slot on the side of the unit. Do not block or push anything into this slot.

Maintenance Schedule

Monthly

1. Wipe the display and housing with a dry or lightly damp cloth to remove dust build-up.
2. Check that the area around the thermostat is clear — no curtains, shelves, or objects within 30 cm that could affect the temperature reading.

Every 6 months

1. In the app, go to Settings > Calibration and run the temperature calibration check. If the displayed temperature feels inconsistent with the room, use the offset adjustment (up to ±3 °C) to correct it.
2. Check the wall plate screws are tight and the T1 body is seated firmly without wobble.

Yearly

1. Review your heating and cooling schedule. Update time slots to reflect any changes to your daily routine — schedules that no longer match usage patterns reduce efficiency.
2. Check the firmware version under Settings > About. Apply any available updates.

Battery Note

The T1 is mains-powered via the HVAC wiring and has no replaceable battery. A small backup cell maintains time and schedule data during power outages. If the display shows a clock error after a prolonged power cut, re-enter the time via Settings > Date & Time.

Long-term Storage or Removal

If the property is unoccupied for an extended period, set a frost protection schedule (minimum 7 °C) rather than switching the system off entirely. Do not remove the T1 from its wall plate while power is live.