Model Number: LRE3083ST
Brand: LG
Age: 6-10 years

Model is LG LRE3083ST, about 7 years old. Long story short - bake element is not heating up, getting 120V to only one side of element. The broiler and sheath heater are working fine. I've narrowed it down to the relay board or the control board. Does anyone know how to test the relay board, part #EBR74164805?
Thanks in advance for any help you can provide.