How much does it cost to fix Alpha error code White reset neon illuminated?

Typical repair cost for the Alpha White reset neon illuminated fault is £150-250 including labour.

White reset neon illuminated High

Alpha White reset neon illuminated Fault Code

Q: What does the Alpha White reset neon illuminated fault code mean?

Your boiler has sensed a lack of water flow, which is preventing it from heating your home safely.

Also written as WHITERESETNEONILLUMINATED — same fault.

The Alpha White reset neon illuminated fault code means: your boiler has sensed a lack of water flow, which is preventing it from heating your home safely.. It appears on 1 Alpha model in our database.

Technical description: Differential flow switch operated or secondary water fault (Section J)

Typical repair cost £150-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Alpha models that show the White reset neon illuminated fault code

Click a model for the full fault code list and model-specific repair notes.

500e Repair: £150-250

Source

Alpha White reset neon illuminated fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026