Ariston Main Controller Assembly 65153801

The Ariston main controller assembly is an electronic control board used in Ariston heating appliances. It serves as the central control unit, managing the appliance's operating sequences such as ignition, temperature regulation and safety monitoring. This part is a printed circuit board assembly that receives input from sensors and thermostats and sends output signals to components like the fan, pump and gas valve. It carries the manufacturer part number 65153801 and is also identified by the alternative code MAIN-CONTROLLER-ASSY. The product code AR65153801-03 appears in Ariston's parts listings for this component.

• The appliance fails to power on or does not respond to any controls.
• Error codes appear on the display that point to a control board fault.
• The boiler or heater operates intermittently, locks out or resets without clear cause.
• Visible damage on the board, such as burn marks, corrosion, swollen capacitors or cracked solder joints.
• The appliance does not follow set temperature or timing programmes, or the display is blank or erratic.

• Confirm the part number 65153801 matches the controller you are replacing.
• Check the appliance's model and serial number against Ariston's parts documentation to ensure compatibility.
• Isolate the electrical supply before removing or fitting the controller.
• Note the connector layout and wiring before disconnecting the old board.
• If a gasket or seal is disturbed during replacement, check whether a new seal is required.