I took my MB4 in for repair and was told my B Board needed replaced. The cost of a new B board is $539.95 plus $85.00 an hour for labor. Does this sound reasonable?? Shouldn't the B board be covered under the 5 yr electronics warranty??
Your best recommendation is to contact Janome direct either by phone or by E-Mail. I would think it would be covered but I am not sure on your particular machine. I think it should cost you only labor. Janome is wonderful about letting you know for sure.