Heat Interface Unit (HIU)

Leak

A heat interface unit transfers the heat from the community heating network into your home's central heating system.

If the leak can be contained, please place a tray or similar to prevent the water causing further damage to the surrounding areas and report the problem to the customer service team. If the leak is uncontainable, isolate the water supply and report the defect as an emergency.

Take a note whether the leak is of hot or cold water, as this could indicate the nature of the issue and help our plumbers to prepare for the call-out.

Please note subject to the nature of the problem, the engineer may have to refer to the manufacturer for parts or to arrange further repairs under their warranty.

Not working

First, check if an annual service has been carried out within the last 12 months and if it's due arrange it at the earliest opportunity. Should the issue persist following the service, contact your Customer Service team.

If your HIU has been serviced in the last 12 months, refer to the troubleshooting tips in the manufacturer's user guide. However, if the issue persists report the matter to the customer service team.

Please note subject to the nature of the problem, the engineer may have to refer to the manufacturer for parts or to arrange further repairs under their warranty.