LOW WATER TEMPERATURE High

Chaffoteaux LOW WATER TEMPERATURE Fault Code

Also written as LOWWATERTEMPERATURE — same fault.

The Chaffoteaux LOW WATER TEMPERATURE fault code means: your boiler is not heating the water effectively because it is having trouble regulating the flow of gas or detecting the water movement required to trigger the heating process.. It appears on 4 Chaffoteaux models 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) Insufficient gas flow; II) Water governenor sticking; III) Incorrect venturi; IV) No venturi fitted
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 LOW WATER TEMPERATURE fault code

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

Source

Chaffoteaux LOW WATER TEMPERATURE 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