High
❍❍❍❍ (DHW) on Halstead Eden

Your boiler is failing to detect that you have turned on the hot tap, meaning it cannot provide hot water to your home.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

DHW cold: Defective DHW turbine or Diverter valve

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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