Smart Thermostat Not Connecting
The app shows the thermostat offline, or schedules don't reach the boiler..
The app shows the thermostat offline, or schedules don't reach the boiler.
What is actually going on
The app shows the thermostat offline, or schedules don't reach the boiler.
The realistic causes, in order
A router change or a 2.4GHz band that has been merged or renamed A receiver placed too far from the hub, or behind foil-backed insulation A firmware update that has left the pairing in a half-completed state
What we test on site
Whether the receiver still switches the boiler when operated manually Wiring at the boiler, since heating controls fail as often at the terminal block as in the app Signal path between hub, receiver and thermostat
Get a smart thermostat that won't connect diagnosed properly
Re-pairing or repositioning the receiver usually restores it; where wiring is wrong we correct it to the manufacturer's diagram.
Questions we get asked
Is a smart thermostat that won't connect a controls fault or a boiler fault?
A router change or a 2.4GHz band that has been merged or renamed
What normally puts a smart thermostat that won't connect right?
Re-pairing or repositioning the receiver usually restores it; where wiring is wrong we correct it to the manufacturer's diagram.
Is it safe to keep using the system with a smart thermostat that won't connect?
Smart controls do not remove the need for correct heating wiring, and OpenTherm or eBus connections must match the boiler's supported protocol.