We may have found other answers which could help you.
Click here for Gas Heating Hourspilot light issue... please help?
The pressure gauge black dial does not move?
Problem with Pilot Light on Puma 80 - Please Help ?
How can I fix my Puma 80e Combi boiler?
Puma 100e - increase in pressure when CH on?
air pressure valve on puma 80e?