High
L2 on Ideal Independent System S15

Your boiler has failed to light several times and has shut down for safety, meaning you currently have no heating or hot water.

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

Ignition Lockout

From this model's manual
Verified against the Ideal/Ideal G101 Ideal Independent System S18 4175070 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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Related fault codes

L1View →

All 23 fault codes on the Independent System S15

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

F1F2F3F4F5F6F7F8F9FnFUL1L4L5L6L8L9LCLnNO CHNO DISPLAYNO HW

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