Ideal Esprit Eco 30 Fault codes & diagnostics

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

Combi Natural Gas 2012-present
GC Number 47-348-92
Download the Ideal Esprit Eco 30 manualThe official installation and service manual (PDF), the document these fault codes were read from. PDF

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Fault codes

All 4 documented codes

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C0

Your boiler's internal memory chip is not communicating correctly with the main computer, preventing the boiler from starting safely.

High Engineer only £150-250

Parts commonly replaced

  • Boiler Control Card (BCC)
  • Wiring harness

Related codes

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

Parts commonly replaced

  • Boiler Chip Card (BCC)
  • Main PCB
Full explanation for C2
F1

Your boiler has stopped working because the water pressure inside the heating system has dropped too low.

High DIY-safe £80-120

What to check first

  1. Locate the internal filling loop, which is usually a small silver lever or a braided hose under the boiler.
  2. Open the filling valve slowly until the pressure gauge on the front of the boiler reads between 1.0 and 1.5 bar.
  3. Close the valve tightly and check that the fault code disappears.

Parts commonly replaced

  • Pressure sensor
  • Filling loop
  • Pressure relief valve

Related codes

Full explanation for F1
L2

Your boiler has stopped working because it cannot safely light the flame, which is often caused by a frozen or blocked pipe carrying waste water outside.

High DIY-safe £90-200

What to check first

  1. Check the external condensate pipe (the white plastic pipe leading outside from the boiler) to ensure it is not frozen or blocked.
  2. If the weather is freezing, pour warm (not boiling) water over the external pipe to thaw any ice blockage.
  3. Reset the boiler using the reset button on the front panel once the blockage is cleared.

Parts commonly replaced

  • Condensate trap
  • Ignition electrode
  • Gas valve

Related codes

Full explanation for L2
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