My Baxi flashes up the error code on the temp display which helps you identify how to fix. For pressure it normally needs a couple of valves released underneath until pressure reaches the right amount. Not sure about lighting though.
@Jaymo85 started
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My Baxi flashes up the error code on the temp display which helps you identify how to fix. For pressure it normally needs a couple of valves released underneath until pressure reaches the right amount. Not sure about lighting though.