Ariston Printed Circuit Board 950431

The Ariston 950431 is a printed circuit board carrying the GOVE 3B-FFI designation. It is the control board used in the Ariston DIA System 27 RFFI boiler family, where it manages ignition, sequencing and safety monitoring of the appliance. It is supplied as a board only.

• The boiler fails to respond to a demand for heat or hot water, with no pump or fan activity.
• Repeated lockouts that clear only after a power cycle, or lockouts that will not clear at all.
• No ignition sequence, or the fan and gas valve are not driven in the correct order.
• Visible damage to the board: scorching, burnt tracks, leaking capacitors or corrosion.
• Fault codes or erratic behaviour that persist after the external controls, sensors and wiring have been checked.

• Confirm the appliance model against the fit list above, as the board is specific to the DIA System 27 RFFI variants.
• Read the board designation printed on the existing PCB and match it to GOVE 3B-FFI.
• Check the boiler's wiring loom, sensors and external controls before condemning the board, as faults elsewhere can mimic PCB failure.
• Work on the appliance must be carried out by a competent heating engineer in line with gas safety requirements.