High
Faulty Electronic control/ignition p.c.b. on Biasi Garda Plus HE M110.24SM/E

Your boiler's main electronic brain is failing to control the ignition and operation properly, which usually results in a complete shutdown to keep your home safe.

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

Faulty Electronic control/ignition p.c.b.

From this model's manual
Verified against the Biasi/Biasi G101 Biasi Garda Plus He M110 24sm E Service Manual 4797031 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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All 7 fault codes on the Garda Plus HE M110.24SM/E

Seeing a different code? Every code this model can display, in one place.

Excessive temperature on primary circuitFaulty c.h. temperature probe NTCFaulty d.h.w temperature probe NTCFaulty flue temperature probe NTCFlame detection errorFlue temperature probe NTC lock out

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