Hi KELLI,<br /><br />We appreciate the feedback you shared about your microwave and the observations you made regarding the fan noise and overall operation, as having a smooth and comfortable cooking experience is important.<br /><br />The microwave may produce humming or buzzing noises during use, which can come from the magnetron or the vent fan while the appliance is running. You can review these details in the Samsung support article below:<br />https://www.samsung.com/us/support/troubleshooting/TSG01001968/<br /><br />For concerns about the vent fan speed, Samsung also offers a guide on how to check the fan’s performance across different settings. This may help determine whether the fan is operating normally:<br />https://www.samsung.com/us/support/troubleshoot/TSG10007256/<br /><br />If this continues, we recommend reaching out to us with the reference number 1152226549 so our team can take a closer look:<br /><br />Facebook Messenger: https://m.me/samsungsupport<br />X: https://x.com/messages/compose?recipient%20id&#61;18768513<br />Samsung Community: https://us.community.samsung.com/t5/samsung-community/ct-p/us<br />Samsung Customer Care: 1‑800‑726‑7864 (1‑800‑SAMSUNG)<br /><br />Thank you again for sharing your thoughts.<br /><br />Meneleo<br />Samsung Care

Hello there, Thank you for reaching out and sharing your experience. We understand how frustrating it can be when a microwave does not keep the correct time, heats slowly, and shows fingerprint marks, and we’re ready to help guide you through the appropriate steps. For the issue with setting and maintaining the correct time, please follow the instructions in the user manual on page 14 under the topic Set Time. For concerns related to the microwave running slow or weak heating, please refer to page 36 of the user manual under the topic Heating is weak or slow, and follow the guidance provided. For maintaining the unit and addressing fingerprint marks on the surface, please follow the instructions on page 32 under the topic Cleaning and maintaining your microwave oven. User manual https://downloadcenter.samsung.com/content/UM/202502/20250214160226972/O_01._IB_FULL_ME7500D_GOOD_ME21DG6300SR_AA_AC_EN.pdf Should you need further assistance after reviewing these sections, please get in touch with us so our team can review your situation and provide support. You may reach us at the following channels: 1. Facebook Messenger: http://m.me/samsungsupport 2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513 3. Samsung Community: https://us.commuity.samsung.com/t5/Samsung-Community/ct-p/us When you message us, please provide this reference number (1152003079), so our team can pull up your information. Thank you! ^Joshua