Shop Ariston heat exchangers for selected combi and system boilers, including main heat exchangers and plate heat exchangers. The main heat exchanger transfers heat from the burner to the central-heating water, while the plate heat exchanger produces domestic hot water on combi boilers. Confirm the boiler model, GC number and existing part number before ordering.
A restricted or damaged Ariston main heat exchanger may cause overheating, kettling noises, poor circulation or repeated boiler lockouts. These symptoms can be linked to the Ariston 101 fault code, although pumps, sensors and system blockages may also be responsible.
A blocked Ariston plate heat exchanger may cause weak, fluctuating or no hot water while the central heating continues to work. Scale, sludge and restricted water flow are common contributing factors.
Heat exchanger faults require professional diagnosis. Before ordering, confirm whether you need the main or plate heat exchanger and compare the boiler model, GC number and existing component reference with the product listing.
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