What the manual says
Manufacturer manualIndicator: Upper LED Flash, Middle LED On, Lower LED On, Bottom LED Off. Fault in return thermistor circuit.
From this model's manual
Verified against the Baxi/Baxi Combi 130 He Combi 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 44 fault codes on the Combi 130 HE
Seeing a different code? Every code this model can display, in one place.
242526272829A neon flashingAnti-cycleB neon flashingB, C, D, E & F neons flashingC neon flashingD neon flashingDHW FLOW SWITCHDry-FireE neon flashingE06FANFlame Failure (Red Light) ONFlow ThermistorIgnition LockoutL0L2L3L4L5L6L7L8L9LdLELFLhLights Flash Flash OnLights Flash Off OnLockout LED continuously onLtMains LED flashingMains LED offOFOverheat LockoutPCB FaultWiring Harness