Thermostat shows E11 and fails to pair with NeoHub or RF receivers

Safety first: No mains wiring changes are required for pairing, but do not open RF devices while powered.

Steps:

• Move the NeoHub or RF receiver closer to the thermostat during pairing.
• Turn off or move away strong RF sources (DECT phones, baby monitors, Wi‑Fi routers) temporarily during pairing.
• Follow the exact pairing sequence in the Heatmiser manual: usually entering pairing mode on the hub/receiver first, then on the thermostat.
• Reset RF settings on the thermostat (factory reset RF) and attempt pairing again.
• If multiple thermostats fail to pair with the same hub, suspect the NeoHub or RF receiver; if only one thermostat fails, its RF module may be faulty.