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Boiler does not switch on

Just installed my new Tado wireless plus receiver. (No other devices) select temperature on APP or wireless thermostat, LED for heat comes on, CHNO becomes live but boiler does not fire. It is a Baxi Combi which works for running hot water so boiler ok. Was working fine with wired thermostat this morning and wiring looks perfectly ok. Any suggestions

Comments

  • I’d double check the wiring. You can post photos if you use the desktop version of the forum.