BoilerFaultCodesWhat the manual says
Manufacturer manualVolatile lockout. Check: Temperature sensor (8000-20,000Ω); Low voltage wiring harness / connections to sensor; Fan / fan harness / connections to fan; Code plug fitted.
From this model's manual
Verified against the Installation And Servicing Instructions For Greenstar I Junior Manufactured Aug 08 July 09 1 installation & service 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 38 fault codes on the Greenstar 24i / 28i Junior
Seeing a different code? Every code this model can display, in one place.
2 pulses2 pulses / No light2 pulses No light5 pulses5 pulses / No light5 pulses No light6a1213141516171819109115A8Blue indicator light flashingBlue indicator light offBlue light onDouble flash Blue lightEAERRORFAFast flashFast flash / FlashingFast flash / Not a fault codeFast flash / OffLOCKOUTNo lightNo light / Not a fault codeOff (No light)Off / OffOn / OffSlow flashSteady on (Burner lit)