Ideal Hydroblock Kit Instinct 30 176475

The Ideal 176475 is a complete hydroblock kit used across a group of Ideal 30 kW combination and system boilers, including the Instinct 30. It belongs to the diverter valve and hydraulics group of components, and its job is to direct heated water to either the central heating circuit or the domestic hot water supply. The diverter gives priority to hot water, so if the heating is running and a hot tap is opened, the boiler serves the tap first.

• Hot water runs lukewarm or cold while the central heating is calling
• Radiators warm up when only a hot tap is running
• Domestic hot water priority is lost, or the boiler fails to switch between heating and hot water
• Boiler locks out or displays a fault code relating to the diverter or hydraulic section
• Restricted flow, knocking or unusual noise from the hydroblock area

• Match the GC number on the appliance data badge against the list above before ordering
• Confirm the part number on the existing component and check the alternative number 1782104
• Check whether a gasket or seal kit is needed for the replacement
• The hydroblock carries water, so isolate and drain the appliance before removal