Thermostat cannot be added to the Tydom app; pairing fails repeatedly.

Safety first: No electrical risk; do not open devices.

• Factory reset thermostat: Reset the thermostat to factory defaults to clear previous pairings.
• Follow pairing steps exactly: Use the Tydom app to start Add device, then put the thermostat into pairing mode as described in its manual.
• Move closer: Place the thermostat near the gateway during pairing to ensure strong signal.
• Check gateway capacity: Ensure the Tydom gateway has not reached its maximum number of devices.

If pairing still fails, the thermostat’s RF module or the gateway may be faulty and require professional diagnosis.