how do I rectify the fault as detailed below?

occasionally my vaillant eco tec pro combi boiler does not come on in the morning and a bmu error code appears on the vrt 360f stat
how can I fix this problem
oliver, February 2020


done
I'd change the wireless stat and receiver for a different brand as the one you have is known to be unreliable.

Rupert, February 2020
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