Alpha Heat Exchanger With Seal Kit 6.5617441A

This is a replacement heat exchanger assembly manufactured by Alpha, supplied with a seal kit. It sits at the centre of the appliance's water circuit, transferring heat from the burner side into the domestic hot water and heating water. The part is listed for the Alpha Ocean Style 80 OF boiler, a floor-standing appliance, and carries part number 6.5617441A.

• Water leaking from the heat exchanger body, its seals or the pipe connections
• Kettling, banging or rumbling noises during heating or hot water demand
• Poor domestic hot water performance or reduced heating output despite the boiler firing
• Discoloured or gritty water at the taps, indicating internal corrosion or scale debris
• Frequent overheat lockouts or temperature-related fault codes on the appliance display

• Confirm the appliance model and GC number 47-532-03 against the rating plate before ordering
• Check the previous number 6.5617441 and the alternative number 1251093 shown on the original part or paperwork
• Have new seals to hand if the existing ones are disturbed or show signs of hardening
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.