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Ideal Logic System IE fault F10

Spark generator fault

Gas boiler

What it means

Boiler has detected a fault with the spark generator.

Likely causes

  1. Faulty spark generator wiring
  2. Faulty spark generator causing ignition failure
  3. Low gas pressure
  4. Gas valve wiring/PCB fault
  5. Faulty gas valve
  6. Faulty electrode
  7. Blocked condensate/trap
  8. Spark generator fault requiring replacement

Where to start

  1. Check wiring
  2. Restart boiler and check if it ignites briefly then extinguishes
  3. Check gas pressure at boiler inlet is >18 mbar

The full answer, free

  • 8 more checks in order
  • The readings and component tests from the manual
  • How to put it right, step by step
  • The manual page for this fault (page 49), right under the answer
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Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.

From the Ideal manual for the Logic System IE. Check the model on the data plate before you order parts.

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