Hi Von...I doubt that the gauge reading 1 bar is the temperature gauge,i think thats for the water pressure.
Maybe your best bet would be to phone Worcester Bosch`s help line and ask them.They`ll put you on the right track.
Smithy
November 2008
Pressure should be set to approx 1 to 1.5 bar
Temp gauge just indicates temp of boiler when functioning
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