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Rick Ridley
Rick Ridley, UK Heating Engineer
Category: UK Plumbing
Satisfied Customers: 2708
Experience:  30 Years on the tools, now retired, Ex CORGI
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Hi, I have an Ariston Micro Genus II Type C 28Kw Combi Boiler

Customer Question

Hi, I have an Ariston Micro Genus II Type C 28Kw Combi Boiler which has shut down & will not reset with the button. When i tried switching the power supply off then back on, initially code d65 appears then changes to code A97.
thanks.
Submitted: 6 years ago.
Category: UK Plumbing
Expert:  Rick Ridley replied 6 years ago.
Hi I am Rick, UK Plumber, and I specialize on Boiler problems, if this is the HE gas council number 47 116 38 then A97 is a problem with the electronic monitoring so could be a sensor, bad connections/wires or PCB, Rick
Customer: replied 6 years ago.
Hi, i was hoping you could be more specific than that. Does it need a laptop plugged in with appropriate software to diagnose, or am i supposed to buy a load of parts in the hope i can cure the fault?
Expert:  Rick Ridley replied 6 years ago.
Sorry ther is no easy answer, first check the sensors with a multimeter, they should read in the low K ohms range, if open circuit or shorted then change it, if all OK and the connections are good, then change the board, Rick

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