PWF40 FC7 Ignition failure after 3 ignition attempts - Poor unreliable cross ignition - Power Wall Furnace PWF 40


Attached 32 Page Pdf - PWF service manual 653095-A


FC7 - Ignition failure after 3 ignition attempts 



Additional FC7 checks: Unreliable Cross Ignition

  • Ensure Burner Venturi, Burner Face and Cross Light Channels are Clear and Clean:


If you are still experiencing unreliable cross ignition, please follow these steps to adjust the slots on the burners:

  • Check Burner Alignment:

    • Due to size constraints, burners are positioned at an angle to each other.
    • Ensure that the burner faces are as level as possible.
    • Verify that the burners cross light reliably.

  • Adjust Burner Tags:

    • If the burner faces are level and aligned and Cross lighting issues persist, try adjusting the tags at the top.
    • Use a flathead screwdriver to gently spread the tip of the tags by 0.5mm.


IMPORTANT:

  • Ensure all adjustments are made carefully to avoid damage.