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Mend Ariston CLAS/HE38 Central Heating Pcb

How can I fix my Ariston central heating boiler CLAS/ HE38?

Have replaced PCB in the boiler and "error code 302" has appeared it is communication error. Could it be one of the connectors wrongly fitted?

BLONDIE
May 2013
AristonAriston CLAS/HE38Heating, Home Heating SystemsCentral Heating Pcb
did you get this fixed we have the problem

Andie
November 2014
Just wondering whether you got this resolved as I now have this error message. I had replaced the water flow switch and everything was working fine so reassembled boiler case but when switched on I got error 302. I suspect a cable connection has been stressed but not sure.

mike
November 2013

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Free repair help for Ariston CLAS/HE38 home heating systems