CBFF - No sparking

The flashcards below were created by user zenken79 on FreezingBlue Flashcards.

  1. Fan running ok, no ignition spark.
    • Fan electrical connectors loose at pub.
    • air pressure hoses loose.
    • air pressure hoses split/perished.
    • cpndensation inside air pressure hoses.
    • brass insert at fan hose port is blocked/partially blocked.
    • air pressure hoses +ve/-ve pressure connections reversed.
    • air pressure switch diaphragm damaged/perforated.
    • combustion chamber case seals in poor condition.
    • pilot window glass broken.
    • pilot window seals in poor condition.
  2. Fan runs slowly, no ignition sparking
    • Fan unbalanced.
    • bearings wearing out.
    • fan slipping on shaft.
  3. Piezo electric ignitors - no spark.
    • Crystals damp.
    • crystals breaking down.
    • electrode lead terminal connection(s) unsound or disconnected.
    • electrode lead insulation damaged.
    • ignition electrode incorrectly positioned.
    • ignition electrode tip pitted/damaged.
    • poor earth preventing complete circuit.
Author:
zenken79
ID:
313702
Card Set:
CBFF - No sparking
Updated:
2016-01-04 09:40:30
Tags:
Gas
Folders:
fault finding
Description:
Combi boiler fault finding - no sparking.
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