--- title: "SKS F1: the speed oven's high thermistor reads open" description: "What F1 means on SKS F1: the speed oven's high thermistor reads opens, what to check before booking, and when it is not a failure at all." url: "https://microwaverepair.center/error-codes/sks-f1/" --- # SKS F1: the speed oven's high thermistor reads open The SKSLV built-in microwave speed ovens carry two temperature sensors that the control watches while it bakes, broils or air fries. ## What F1 actually means. The SKSLV built-in microwave speed ovens carry two temperature sensors that the control watches while it bakes, broils or air fries. F1 is the code the owner's manual gives when the one labeled high thermistor reads as an open circuit, so the control can no longer tell how hot the cavity is and stops the heat. SKS microwave display What to do when F1 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 SKS Signature Kitchen Suite microwaves looked at where they are installed, with the display message and the last mode used written down first. ### Source SKS SKSLV3001S 30-inch built-in microwave speed oven owner's manual Listed in the troubleshooting table of the SKSLV3001S professional and SKSLV3011MT transitional 30-inch built-in microwave speed ovens. ## Before you book, in this order. Each step comes from SKS's own guidance for F1 on its microwaves. Follow it to the end: the last card says whether this is a visit. 01 Press CLEAR/OFF to silence the beep and clear F1 from the screen. 02 Set the cooking function again from the start and watch whether F1 returns. 03 If F1 shows up a second time, write the code down and switch the speed oven off at its breaker until the visit. 04 Book a visit so the sensor and its wiring can be tested from behind the unit, which is not an owner job. ### 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 F1 is not the same as F2, which reports the same sensor shorted rather than open, or F12 and F13, which point at the second sensor. It does not mean the magnetron has stopped, and plain microwave heating is not what the code is about. ## What you may notice with it. The microwave problems F1 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/) - [**Microwave Runs but Food Stays Cold**](https://microwaverepair.center/problems/microwave-not-heating/) Problem ### What a Microwave Error Code Is Telling You 7 causes, cheapest first Where F1 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/) ## SKS microwaves. Signature Kitchen Suite microwaves looked at where they are installed, with the display message and the last mode used written down first. [SKS microwave repair](https://microwaverepair.center/brands/sks/) More SKS codes [F2](https://microwaverepair.center/error-codes/sks-f2/) [F3](https://microwaverepair.center/error-codes/sks-f3/) [F6](https://microwaverepair.center/error-codes/sks-f6/) [F12](https://microwaverepair.center/error-codes/sks-f12/) [F13](https://microwaverepair.center/error-codes/sks-f13/) [F14](https://microwaverepair.center/error-codes/sks-f14/) [Loc](https://microwaverepair.center/error-codes/sks-loc/) [LOCKED](https://microwaverepair.center/error-codes/sks-locked/) [PLEASE SET TIME OF DAY](https://microwaverepair.center/error-codes/sks-please-set-time-of-day/) 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 41 codes of this kind](https://microwaverepair.center/error-codes/#family-sensor) SKS 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. SKS 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. SKS 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 SKS's own words > Cause: High Thermistor Opened Sensor [SKS SKSLV3001S 30-inch built-in microwave speed oven owner's manual](https://www.sksappliances.com/media/documents/SKSLV3001S_Owners_Manual_New_Logo_US.pdf) [SKS SKSLV3001S 30-inch built-in microwave speed oven owner's manual](https://www.sksappliances.com/media/documents/SKSLV3001S_Owners_Manual_New_Logo_US.pdf) [SKS SKSLV3011MT transitional speed oven owner's manual](https://www.sksappliances.com/media/documents/SKSLV3011MT_transitional_speed_oven_owners_manua.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed in the troubleshooting table of the SKSLV3001S professional and SKSLV3011MT transitional 30-inch built-in microwave speed ovens. ## SKS F1 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 CLEAR/OFF to silence the beep and clear F1 from the screen. If it comes back, it needs a visit. ### Can I keep using the microwave mode on my SKS speed oven while F1 is showing? The manual only tells you to clear the code and reprogram. If F1 keeps coming back, stop using the unit and book a visit, because the control is running without a reading it relies on. ### Why did F1 appear on my SKS speed oven right after a power cut? A power interruption can leave the control in an odd state, so clear the code and try one cooking function. If F1 returns on a normal cycle, the sensor circuit itself needs to be checked. ### Is F1 on the SKSLV3011MT the same as on the SKSLV3001S? Yes. Both manuals print the same code table, and F1 carries the same meaning on the transitional and the professional model. --- **[Read on the site: SKS F1: the speed oven's high thermistor reads open](https://microwaverepair.center/error-codes/sks-f1/)** **[Book a visit with MicrowaveRepair.center](https://microwaverepair.center/schedule/)**