Phil the Fluter
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On the wall next to my Baxi boiler is an on-off switch identical to several light switches in my garage.
Adjacent to the switch is a similar sized white box that has two very small lights, one above the other. Next to these lights is a small grey pushbutton.
The upper light is green when it is lit.
I've never seen the l lower light lit.
Can anyone tell me what this box is, what the lights indicate and what the grey button does?
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