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Immergas Victrix fault 43

Block due to loss of flame signal

Gas boiler

What it means

This occurs if the 'Flame signal loss' error (code 38) occurs many times in a row within a preset period.

Likely causes

  1. Repeated occurrence of Flame signal loss error (code 38) within preset period
  2. Boiler lockout condition triggered (specific cause not detailed in this section)
  3. Dirty burner
  4. Clogged primary heat exchanger
  5. Incorrect combustion parameters
  6. Intake-exhaust terminal not correctly installed
  7. Normal behaviour following calibration - system still adjusting ignition parameters
  8. Normal behaviour after calibration - system still adjusting
  9. Post-calibration adjustment period of burner ignition
  10. Incorrect nozzle diameter for gas type
  11. Incorrect gas pressure setting

Where to start

  1. Press the Reset button
  2. Check display for indicator 21 activation
  3. Check display indicator 19 for any accompanying error code

The full answer, free

  • 57 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 57), 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 Immergas manual for the Victrix. Check the model on the data plate before you order parts.

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