What the manual says
Manufacturer manualFlame extinguishes: When the ionisation probe fails to detect flame presence. If a flame is not detected within 10 seconds, the safety solenoids will close. The red lockout indicator 35 illuminates and the display shows the error code.
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.
Avoid the next call-out bill
A cover plan would handle faults like Lockout: no call-out fees, no surprise bills.
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All 22 fault codes on the Talia Green 25
Seeing a different code? Every code this model can display, in one place.