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home Fix label Heating label_important Home Heating Systems category Saunier Duval

what is an F4 fault on my Saunier Duval boiler?

My Saanier Duval has a persistant F4 fault occuring and clears when I swith of the power for 20 seconds
Michael humphries, March 2008
home Fix label Heating label_important Home Heating Systems category Saunier Duvaldone
Code 04 is Ignition -flame detection fault.
This applies to an Isomax F28 E2.
You would really have to give more info for a definitive answer though, as I gave this as an example, with a less than likely chance that this is the appliance you are asking about!

Martin, March 2008
link Click here to see other fixes for Saunier Duval ISOTWIN/THEMA.

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