how to reset my Vaillant boiler panel back to factory setting ,the password number on level 2 entry has been altered therefore now not known,
how many attempts am I allowed for the correct password number
Default password is 17 (can't be altered). if you enter it correctly, if you don't know how to enter it, why mess around? you could change a lot of things that could already be set up for your system.
Carefree
July 2010
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