Clocks

[Kb1974]

Hi all , all the gauges in my clocks have stopped working, next time I start it they most probably be working again ,as have been like this for a month or so now . Checked multi plug on rear ,checked terminals all good . They just randomly it out ,all at same time ,and get a buzz,clicking from fuel for a Min or so after key removed . Everything else works fine all lights ,milage , indicators, and warning lights.

Anybody any ideas ? Astra mk4.

Cheers.