How much does it cost to fix boiler error code Condensate Drain Blockage?

Typical repair cost for the boiler Condensate Drain Blockage fault is £90-160 including labour.

Condensate Drain Blockage High

Boiler Fault Code Condensate Drain Blockage

Also written as CONDENSATEDRAINBLOCKAGE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Condensate Drain Blockage appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Liquid waste produced by the boiler is not draining away properly, which has caused the system to switch itself off for safety. (As reported on Ideal Turbo2 24)

Pick your boiler brand for the Condensate Drain Blockage fix

Ideal Condensate Drain Blockage 1 model

Source

Information for the Condensate Drain Blockage 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