WATER TEMPERATURE LOW High

Chaffoteaux WATER TEMPERATURE LOW Fault Code

Also written as WATERTEMPERATURELOW — same fault.

The Chaffoteaux WATER TEMPERATURE LOW fault code means: your boiler is struggling to heat the water to the right temperature because the water is flowing through the system too quickly or the gas supply isn't strong enough.. It appears on 1 Chaffoteaux model in our database.

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: i) Water rate too high ii) Insufficient gas flow iii) Water governor sticking
Typical repair cost £120-250 (including labour)

Engineer required

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

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Chaffoteaux models that show the WATER TEMPERATURE LOW fault code

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

Source

Chaffoteaux WATER TEMPERATURE LOW fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

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