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can i fix my ariston combi boiler?

after bleeding radiators, pressure dropped and pilot kept going out. refilled boiler and tried reset, then code a 03 came up and nothing has happened since

sam
October 2007
Have same problem. Need to increase pressure but do not know how. There are jumpers on PCB to continiously run motor - I am going to try this, suspect motor, divertor valve or pressure relief valve.

Paul Smart
October 2007

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