We moved in to a new office two weeks ago and all fine except that at the end of last week the radiators and hot water stopped working. I have had a look at it and the pressure gauge has the grey hand at below 1 and the red hand between 1 and 2 so I think it is probably a pressure problem but how do I reset the pressure - I am sure it is quite easy and just a matter of loosening something until the pressure goes up but am not sure what and how safe this is to do?
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