Heat exchanger sensor
Engineer visit required
https://letsfixit.co.uk/16234/boiler-error-codes-baxi-ga-range-e431/?utm_campaign=twitter&utm_medium=twitter&utm_source=twitter
Heat exchanger sensor
Engineer visit required
https://letsfixit.co.uk/16234/boiler-error-codes-baxi-ga-range-e431/?utm_campaign=twitter&utm_medium=twitter&utm_source=twitter