Most Sharp microwaves feature a one-year limited parts and labor warranty on all components and an additional warranty on the magnetron tube, as of 2015. However, the terms and length of the warranty vary from model to model.
The one-year limited warranty covers any defect in materials or workmanship and states that Sharp is obligated to cover all costs of repairs or provide a replacement product. The warranty only applies to the original owner, and it is necessary to show proof of purchase in order to prove the microwave is still under warranty. This warranty is limited to functional parts of the microwave only and does not cover the turntable, light bulb or any other non-functional accessories.
While all Sharp microwaves feature a limited parts warranty on the magnetron tube, the length of this warranty depends on the specific model. Some models, including R-331ZS and R-309YW, feature a five-year limited magnetron tube warranty, while other models feature a seven-year warranty on the magnetron. This includes models such as R-1875 and R-1214T.
In order to obtain warranty service, it is necessary to take or ship the microwave to the nearest Sharp authorized service center. For built-in microwaves, in-home service is available during the first year of the warranty.