Product review (1 stars): SAMSUNG will not support repairs after 1 year, and the range will stop working within 2-3 years guaranteed! - Buy USA brands.
I loved it initially, then oven stopped working after 2 years:  3 months after trying to get it repaired, with warrantech warranty, i was unable to find competent technician.  Tried to call samsung, they will not fix even if you are willing to pay out of pocket.  Replaced $900 worth of parts to no avail.  Now they asked me to replace harness (complete oven wiring), that would be more expensive than appliance.  My appliance oven stopped working on July 15 2017, now i will just buy a new range... not worth wasting your time with them.
Stay Away, Samsung will not support their products after the 1 year warranty.
Samsung makes this range only for American market, so  beware.  The want you to treat like a PC, when it breaks throw it out!!!
I spent $1700 dollars and I am ashamed to have trusted them in the appliance space.  TV might be ok. but they have no business being the the appliance space.
Ok, Fixed the Relay board myself, the part was $119 .  I gave up on good technical support.  No one i called new this issue, I am an engineer, and tested the various components myself.  Do not buy samsung, unless you know how to troubleshoot electronics.  No one you call knows what they are doing.