MODEL PROFILE
Signal or code
Error codes and display signals
The official manual linked for this model documents these messages. Some indicators apply only to variants that display them; each entry is labeled as a code, indicator, or status.
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Model and error-code facts may be shown in the language of the original source.
Official PDF manual
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MODEL OVERVIEW
About this model: Samsung ME21DG6300SRAA
Samsung ME21DG6300SRAA is a 2.1-cu-ft over-the-range microwave whose exact-support manual identifies five C-series information codes and a distinct 6300 control panel.
Confirm the 6300 equipment and control strip
ME21DG6300SRAA is the fingerprint-resistant stainless Samsung microwave installed above a cooking range, with a 2.1-cu-ft cavity. The official US product record exposes this exact SKU and lists Sensor Cook, Wi-Fi Connectivity and Auto Connectivity. Its matching Samsung support entry links a 44-page English owner manual; the cover reads ME21D*6300****, and the appendix identifies the corresponding AA branch. The physical page 13 drawing is a useful identification check: a horizontal control strip has separate Popcorn, Sensor Cook, Reheat and Auto Cook keys, a numbered pad, Turntable, Settings, Child Lock, Stop Eco, a four-speed vent fan and a cooktop lamp. Read the label on that strip before following advice for a different Samsung display. The recorded full model number matters when ordering help or interpreting an information code.
Use the complete code before taking action
When a code appears, photograph the entire display rather than remembering only its final digit. The appendix table on page 39 says C-10 means the GAS sensor is open or shorted; Samsung says to unplug and contact service, without describing a homeowner adjustment to a gas line. C-F0 instead indicates internal communication failure, and C-F1 is an EEPROM read or write problem. Both also direct disconnection and Samsung support. C-F2 describes a malfunctioning touch button and first asks you to press Stop and try the button again. C-d0 is more specific to a control pressed for over ten seconds: dry and clean the keys, look for water, and if it returns switch the oven off for more than 30 seconds before trying again. A recurring C-d0 calls for Samsung. These are five separate entries, not interchangeable suffixes.
Separate sensing from preset cooking
Several ordinary cooking choices change the result without producing a fault. Reheat senses a selected casserole, dinner plate or pasta serving; Sensor Cook similarly senses food in the chosen category, including potatoes, pizza and vegetables. Auto Cook follows programmed time and includes Home Dessert rather than using the same sensing path. The difference helps explain why a preselected serving size or vessel can matter. If food is still cool, the manual allows additional time; uneven results also call for stirring and standing, not an automatic C-10 diagnosis. Turntable off works only in manual cooking, and Samsung recommends leaving rotation on for even heating. Keep the roller ring seated beneath the glass tray. A stopped turntable after an intentional manual setting is a different observation from an information code on the display.
Understand automatic hood and phone behavior
This model is a hood as well as a microwave, so distinguish those systems in a service note. The vent key cycles through boost, high, medium and low speeds; the protection fan may turn on by itself when internal parts get hot and may continue for thirty minutes or more. Auto Connectivity can pair the hood with a compatible Samsung cooktop so the fan follows cooktop use. SmartThings also lets a phone check status and control fan speed or the cooktop lamp after Wi-Fi setup. The manual explicitly bars remote start of microwave cooking for safety. Weak wireless reception can interrupt app functions, but that does not by itself establish the C-F0 hardware code. If only the fan or app behaves oddly, record that distinction and inspect settings before calling the entire oven inoperative.
Rule out lock, Eco and routine upkeep
For an unresponsive panel, first consider Child Lock: hold its own key for three seconds to toggle it. Stop Eco can blank the display while reducing standby use; touching a button wakes it. Samsung’s troubleshooting table lists moisture, debris and Child Lock as possible causes of keys that do not respond. Wipe the panel with a damp cloth and dry it thoroughly, taking particular care if C-d0 was displayed. System Settings can issue a four-month Filter reminder; the word Filter is maintenance text rather than one of the C-codes. The reusable grease filter should be cleaned at least monthly; a charcoal filter in a recirculating installation is replaced every six to twelve months. Preserve the full code, whether heating continued, and whether the fan, lamp or phone connection was affected for an efficient support call.
Verified model details
The exact-SKU support page supplies the ME21D*6300**** owner PDF.
Source for this detailPhysical page 13 labels Sensor Cook, Reheat, hood controls and Child Lock.
Source for this detail · Source page: 1The p39 code table distinguishes sensor, communication, memory and touch faults.
Source for this detail · Source page: 13The hood can respond to a paired cooktop without starting microwave cooking remotely.
Source for this detail · Source page: 39
This description summarizes the linked source documents; check each cited source for your exact model and region.
Manufacturer source
Open official source
Over-the-Range Microwave Fingerprint Resistant Wi-Fi | 2.1 cu.ft. — ME21DG6300SRAA
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.