BoilerFaultCodesHalstead No display Fault Code
Also written as NODISPLAY — same fault.
The Halstead No display fault code means: your boiler is not reacting when you turn on the hot tap, leaving you with cold water and a blank display because it cannot sense that water is flowing.. It appears on 16 Halstead models in our database.
Technical description: No light display when tap on. DHW cold. Defective DHW flow switch or defective DHW/CH thermistor
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 display fault code
Click a model for the full fault code list and model-specific repair notes.
- Dimplex Combi Repair: £100-£350
- Dimplex Combi Repair: £120-£240
- Dimplex System Repair: £90-350
- Dimplex System Repair: £90-280
- Eden Repair: £150-300
- Eden Repair: £150-250
- Eden 80 Repair: £150-300
- Eden 80 Repair: £150-250
- Eden CBX/SBX Repair: £150-300
- Eden CBX/SBX Repair: £150-250
- Netaheat 10/16E Repair: £150-300
- Netaheat 10/16E Repair: £150-250
- Wickes 100 Repair: £150-300
- Wickes 100 Repair: £150-250
- Wickes 80 Repair: £150-300
- Wickes 80 Repair: £150-250
Source
Halstead No display 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