How much does it cost to fix boiler error code LOW WATER TEMPERATURE?

Typical repair cost for the boiler LOW WATER TEMPERATURE fault is £120-250 including labour.

LOW WATER TEMPERATURE High

Boiler Fault Code LOW WATER TEMPERATURE

Also written as LOWWATERTEMPERATURE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code LOW WATER TEMPERATURE appears across 2 boiler brands and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning 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. (As reported on Chaffoteaux Britony Duo 55)

Pick your boiler brand for the LOW WATER TEMPERATURE fix

Chaffoteaux LOW WATER TEMPERATURE 4 models Potterton LOW WATER TEMPERATURE 1 model

Source

Information for the LOW WATER TEMPERATURE fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

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