This is a junk item. Healthy Chef MRO-S8Y(R) Red Made in 2020 Purchased in 2021 The oven function was never used, and the black plate was never used either. It was used for warming food. H-54 is lit and the microwave function stops. Sometimes it works when you press the warm button. It has been working so far when specifying the wattage and time, but I am selling it because I bought a new one. No original box, and the inside and outside are in very good condition. Instant purchase is OK. Returns are not accepted after purchase.