- Hold down the ‘+’ and ‘-‘ keys together. The LED will flash yellow and the buzzer will sound
- After about 10 seconds, when the buzzer begins to make a quicker sound and the yellow LED flashes quickly, release the keys
- Press the ‘+’ key on the keypad
- If the red LED switches on, the hard reset has been successfully completed; if the LED remains switched off, it is necessary to repeat the process from the beginning.
After a hard reset, the radiator is no longer visible in the app, and the pairing process needs to be repeated.