--- title: "Sharp Er03: the countertop convection model switched into overheat protection" description: "What Er03 means on Sharp Er03: the countertop convection model switched into overheat protections, what to check before booking, and when it is not a failure at…" url: "https://microwaverepair.center/error-codes/sharp-er03/" --- # Sharp Er03: the countertop convection model switched into overheat protection Sharp's compact convection and air fry countertop model protects itself when its temperature climbs too high. ## What Er03 actually means. Sharp's compact convection and air fry countertop model protects itself when its temperature climbs too high. It stops, shows Er03 and sounds an alert that continues until you press STOP/CLEAR or unplug it. Sharp microwave display What to do when Er03 shows on the microwave ### Kind of code Sensors and temperature The control has stopped trusting what one of its sensors reports: the cook or humidity sensor that ends a sensor reheat when steam rises, or a thermal cutout that trips when the cavity or the magnetron runs too hot. A cutout that opens stops the microwave mid-cycle and often recovers once it cools; one that keeps tripping, or a sensor program that shuts off at once every time, needs the sensor, its wiring or the airflow behind it checked. ### Usually leads to Microwave control board and touchpad repair Tracing a dead display, keys that do not answer or a code that keeps returning to the keypad, the ribbon, the relays or the main board, and replacing only the part that failed. ### Shows up as What a Microwave Error Code Is Telling You A microwave error code may be a letter and a number on the display, a lock or demo word, a row of dashes, or a beep with a blinking clock, and it can show while the microwave still heats or block every key until it is cleared. ### Make Sharp Sharp microwaves repaired in the kitchen, including drawer models under the counter, countertop units and those mounted over the burners. ### Source Sharp USA support article table image: Automatic Protection Mechanism (SMC0985KS) Published by Sharp for the SMC0985KS 0.9 cu. ft. countertop convection microwave with air fry; no Sharp drawer or hood manual lists Er codes. ## Before you book, in this order. Each step comes from Sharp's own guidance for Er03 on its microwaves. Follow it to the end: the last card says whether this is a visit. 01 Press STOP/CLEAR and leave the door open so the cavity can cool. 02 Check that the vents around the cabinet are not blocked by walls, bags or other appliances, and that the air fry basket is not overloaded with greasy food. 03 If Er03 returns on a normal cycle after cooling, book a visit so the thermal protection and fan can be checked. ### Still there? It usually turns into [microwave control board and touchpad repair](https://microwaverepair.center/services/microwave-control-board-and-touchpad-repair/). Book with the code and the model number. ### What not to do Er03 is not a fire alarm; if you see flames or smoke, keep the door shut and unplug the unit. It is also different from Er04, which is the low-temperature protection. ## What you may notice with it. The microwave problems Er03 tends to arrive with. Answer these at the microwave before anyone is booked. [All problems](https://microwaverepair.center/problems/) Before you call ### [What a Microwave Error Code Is Telling You](https://microwaverepair.center/problems/microwave-error-code/) [All 7 causes, cheapest first](https://microwaverepair.center/problems/microwave-error-code/) It also comes with - [**Microwave Shuts Off Before the Timer Ends**](https://microwaverepair.center/problems/microwave-stops-mid-cycle/) - [**Burning Smell From a Microwave**](https://microwaverepair.center/problems/microwave-burning-smell/) Problem ### What a Microwave Error Code Is Telling You 7 causes, cheapest first Where Er03 usually leads ## Microwave control board and touchpad repair. **Control board, keypad membrane or display · moderate to highest.** Book a visit [What the job involves](https://microwaverepair.center/services/microwave-control-board-and-touchpad-repair/) ## Sharp microwaves. Sharp microwaves repaired in the kitchen, including drawer models under the counter, countertop units and those mounted over the burners. [Sharp microwave repair](https://microwaverepair.center/brands/sharp/) More Sharp codes [Er04](https://microwaverepair.center/error-codes/sharp-er04/) [Er05](https://microwaverepair.center/error-codes/sharp-er05/) [Er06](https://microwaverepair.center/error-codes/sharp-er06/) [ERROR](https://microwaverepair.center/error-codes/sharp-error/) [LOCK ON](https://microwaverepair.center/error-codes/sharp-lock-on/) [DEMO ON](https://microwaverepair.center/error-codes/sharp-demo-on/) [DOOR LOCK ON](https://microwaverepair.center/error-codes/sharp-door-lock-on/) [ENJOY YOUR MICROWAVE](https://microwaverepair.center/error-codes/sharp-enjoy-your-microwave/) Sensors and temperature on other makes [Bertazzoni ERROR](https://microwaverepair.center/error-codes/bertazzoni-error/) [Bosch ERROR](https://microwaverepair.center/error-codes/bosch-error/) [Café HOT](https://microwaverepair.center/error-codes/cafe-hot/) [Dacor C-10](https://microwaverepair.center/error-codes/dacor-c-10/) [Fisher & Paykel A1](https://microwaverepair.center/error-codes/fisher-and-paykel-a1/) [Fulgor Milano ERROR](https://microwaverepair.center/error-codes/fulgor-milano-error/) [GE Profile ERR](https://microwaverepair.center/error-codes/ge-profile-err/) [JennAir E11](https://microwaverepair.center/error-codes/jennair-e11/) [All 42 codes of this kind](https://microwaverepair.center/error-codes/#family-sensor) Sharp builds this ### Microwave hood combination The microwave that hangs from the wall cabinets above the burners, heating food in its cavity while its own fan, light and filters handle the steam and grease rising from the pans beneath it. Sharp builds this ### Built-in microwave A microwave set into a tall cabinet or a wall of cabinetry at eye level, either a countertop body wrapped in a trim kit or a true built-in model, including speed and convection microwaves that brown as well as heat. Sharp builds this ### Microwave drawer A microwave built under a counter or into a kitchen island that opens like a drawer at the touch of a key, with a motor and gears sliding its cavity out toward you. ## In Sharp's own words > The display may show Er03, which means the appliance has entered into high temperature overheat mode. [Sharp USA support article table image: Automatic Protection Mechanism (SMC0985KS)](https://support.sharpusa.com/servlet/rtaImage?eid=ka0UV000000OvwP&feoid=00NHp00000kcRRY&refid=0EMUV00000AU5vl) [Sharp USA support article table image: Automatic Protection Mechanism (SMC0985KS)](https://support.sharpusa.com/servlet/rtaImage?eid=ka0UV000000OvwP&feoid=00NHp00000kcRRY&refid=0EMUV00000AU5vl) [Sharp USA support article: Troubleshooting Error Codes on Countertop Microwave Oven (SMC0985KS)](https://support.sharpusa.com/s/article/Troubleshooting-Error-Codes-on-Countertop-Microwave-Oven) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Published by Sharp for the SMC0985KS 0.9 cu. ft. countertop convection microwave with air fry; no Sharp drawer or hood manual lists Er codes. ## Sharp Er03 microwave repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. 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Press STOP/CLEAR and leave the door open so the cavity can cool. If it comes back, it needs a visit. ### What should I do when my Sharp SMC0985KS shows Er03? Press STOP/CLEAR, let it cool with the door open and check the air space around it. A repeat after cooling needs a technician. ### Why does my Sharp air fry microwave overheat? Blocked vents, long back-to-back air fry or convection cycles, or a cooling fan that has slowed can all push it into Er03. ### Can I silence the Er03 beep on a Sharp microwave? STOP/CLEAR stops it, as does unplugging the microwave. --- **[Read on the site: Sharp Er03: the countertop convection model switched into overheat protection](https://microwaverepair.center/error-codes/sharp-er03/)** **[Book a visit with MicrowaveRepair.center](https://microwaverepair.center/schedule/)**