High
Central Heating NTC fault on Heatline Capriz 25/28

Your boiler's temperature sensor for the heating system has stopped working correctly, meaning the unit cannot accurately measure how hot the water is.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Central Heating LED flashing. Check or replace Central Heating NTC. 10-12 kohms @ 20 ºC.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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