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Ideal Logic fault F3

Fan fault

Gas boiler

What it means

Fan motor not operating or fan circuit fault detected

Likely causes

  1. Fan wiring loose or deteriorated
  2. Fan wiring lacks continuity
  3. No 230Vac supply to fan
  4. PCB fault

Where to start

  1. Check fan wiring connections at both ends for security
  2. Test fan wiring for continuity
  3. Measure 230Vac at blue and brown connections to 3-way fan connector

The full answer, free

  • 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. Check the model on the data plate before you order parts.

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