the pressure gauge is too high. have bled the radiators and it seemed to be going down but then went back up again

Carol, November 2010

If the filling key has been left in, ensure the water filling tap is turned off and remove the key.
If this doesn't cure the problem and it continues to rise, there is a problem with the domestic heat exchanger 'mixing', replacement of the DHE being the only solution, had this on cdi's on many occasions.

Carefree, November 2010