High
Blocked condensate pipework on Warmworld FFC 30/60

Your boiler has switched itself off because the waste water pipe that carries away condensation is blocked or frozen, causing water to back up inside the unit.

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.

What the manual says

Manufacturer manual

The boiler will automatically stop functioning via the blocked drain device in the syphon trap.

From this model's manual
Verified against the Warmworld Ffc 30 60 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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