Bosch EasyControl does not detect or control Bosch Smart Radiator Thermostats in certain rooms, leading to uneven heating.

Safety first: Low risk; only battery handling.

• 1. Replace batteries: Fit new batteries in the affected Smart Radiator Thermostats.
• 2. Reposition EasyControl: If possible, move the EasyControl to a more central location to improve RF coverage.
• 3. Check zone mapping: In the app, verify that each radiator thermostat is assigned to the correct room/zone and that the zone has a valid schedule.
• 4. Reduce obstacles: Avoid placing large metal furniture or appliances directly between the EasyControl and the radiator thermostats.

Professional help: If RF issues persist, Bosch support can advise on RF range and potential need for updated hardware.