Ideal i-mini 24 Fault codes & diagnostics

3 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

Combi Natural Gas 2011-2016 Discontinued
GC Number 47-348-77
Download the Ideal i-mini 24 manualThe official installation and service manual (PDF), the document these fault codes were read from. PDF

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Fault codes

All 3 documented codes

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c0

Your boiler is struggling because the electricity supply feeding it has dropped below the minimum voltage required to function safely.

Medium Engineer only £100-250 Shared across the i-mini range

Parts commonly replaced

  • Printed Circuit Board (PCB)
  • Wiring harness
Full explanation for c0
c2

Your boiler's electronic memory card is not being recognised, which prevents the system from starting up safely.

High Engineer only £150-300 Shared across the i-mini range

Parts commonly replaced

  • Boiler Chip Card (BCC)
  • Main PCB
Full explanation for c2
L1

Your boiler has detected that the water inside the system has become dangerously hot and has shut itself down to prevent damage or overheating.

High Engineer only £150-300 Shared across the i-mini range

Parts commonly replaced

  • NTC Thermistor
  • Primary Heat Exchanger
  • Pump

Related codes

Full explanation for L1