Halstead No DHW temperature control Fault Code
Also written as NODHWTEMPERATURECONTROL — same fault.
The Halstead No DHW temperature control fault code means: your boiler is struggling to accurately measure how hot the domestic water is, which means your tap water may come out too cold or scaldingly hot.. It appears on 4 Halstead models in our database.
Technical description: Defective DHW sensor • Check DHW sensor • Check wires to sensor
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Halstead models that show the No DHW temperature control fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Halstead No DHW temperature control fault code information on this page is sourced and cross-checked against the official Halstead service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026