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Mend Ariston 03 Combi Boiler Heating Error Code

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
AristonAriston 03Heating, Home Heating SystemsCombi Boiler Heating Error Code
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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Ariston A/23 MFFI COMBIAriston Combi AAriston euro-combiAriston HE24 MFFIAriston Micro Combi 23mffiAriston Micro Genus 11Ariston Micro Genus 23 MfiiAriston Micro Genus HE 24 MFFIAriston Microgenus 28 HE MFFIAriston One RSAriston SX 20 MFFICEAriston SX20 EuroCombi

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