Intergas HRE / Rapid / ECO RF fault 8

Incorrect fan speed

Gas boiler

What it means

The boiler controller has detected the fan is not running at the correct speed.

Likely causes

  1. Fan catching on casing
  2. Wiring between fan and casing fault
  3. Poor wire contact
  4. Gas tap closed
  5. Air in gas pipe
  6. Gas supply pressure too low
  7. No ignition / worn ignition electrode
  8. No spark / faulty ignition unit on gas valve
  9. Gas/air adjustment not correctly set
  10. Fan faulty
  11. Fan dirty
  12. Gas valve faulty

Where to start

  1. Check fan is not catching on casing
  2. Check wiring between fan and casing
  3. Check wiring for poor contact

The full answer, free

  • 21 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

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 Intergas manual for the HRE / Rapid / ECO RF. Check the model on the data plate before you order parts.

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