I have a Dacor cooktop model EG486SCH/LP that has one LED that is not working and another one that seems to work sometimes and not others. I'm not sure why these LEDs are a problem and I'd like to know that and if there is a replacement that is more robust. And, I need to know what part number to order to get replacements. Also, when I take the burners out to gain access, the seal under the burner is quite brittle and needs to be replaced. What do I do about that?