how do i reset boiler after water pressure dropped to zero. have re pressure?

User guide here:

http://www.potterton.co.uk/docs/Potterton_Performa_System_HE_User_Guide.pdf

Some stuff here:
http://www.diynot.com/forums/viewtopic.php?t=283121

and more here:
http://howtomendit.com/answers.php?id=38628

Seems that there is a front panel control with "Reset" marked. Turn the knob to "Reset" and hld there for a few seconds. Plus there is also an internal reset buttnon mentioned in the above links

X
March 2015