NOTE: This should only be done on EMERGENCY ONLY
They would need to open the bottom of the boiler in the kitchen, in front of the comfort room
(CRITICAL AND SHOULD NOT EXCEED THE REQUIRED TEMP) IF NOT SURE DO NOT PROCEED
They need to slowly and carefully turn this till you reach the desired water pressure 1.5 or less
They can turned using a bread knife or a coin
To know more please check the video below: