We need more info.
Is it 336-02 LLC, 336-02 LDC (digital control), 336-2 LLC Combi or 336-02 LDC Combi?
Due to your description it may be the problem with the power module A1.
This is the bad news. **** expensive part.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.