--- title: "GE Profile F4: the humidity sensor reads open" description: "What F4 means on GE Profile F4: the humidity sensor reads opens, what to check before booking, and when it is not a failure at all." url: "https://microwaverepair.center/error-codes/ge-profile-f4/" --- # GE Profile F4: the humidity sensor reads open The humidity sensor reads the steam that food gives off so sensor programs know when to stop. ## What F4 actually means. The humidity sensor reads the steam that food gives off so sensor programs know when to stop. GE lists F4 as that sensor reading open, often from a failed sensor or a loose connection. Manual cooking by time does not depend on it. GE Profile microwave display What to do when F4 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 GE Profile GE Profile microwaves repaired where they hang or sit, whether it is the vent fan, the cavity lamp, the keypad or the heat that gave out. ### Source GE Appliances microwave code article, linked from the PVM9005SJSS owner center From GE's microwave code article, linked on the PVM9005SJSS support page. Sensor-cooking models such as the PVM9005 and PVM9179 are the ones that carry a humidity sensor. ## Before you book, in this order. Each step comes from GE Profile's own guidance for F4 on its microwaves. Follow it to the end: the last card says whether this is a visit. 01 Press Cancel/Off and try a Cook Time run to confirm the microwave still heats. 02 Reset the breaker for 30 seconds. 03 If F4 returns, cook by time for now and book a visit to test the humidity sensor and its connector. ### 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 F4 is not the everyday ERR or SENSOR ERROR, which follows an opened door or a covered dish. It is a reading problem with the sensor itself. ## What you may notice with it. The microwave problems F4 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/) Problem ### What a Microwave Error Code Is Telling You 7 causes, cheapest first Where F4 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/) ## GE Profile microwaves. GE Profile microwaves repaired where they hang or sit, whether it is the vent fan, the cavity lamp, the keypad or the heat that gave out. [GE Profile microwave repair](https://microwaverepair.center/brands/ge-profile/) More GE Profile codes [F3](https://microwaverepair.center/error-codes/ge-profile-f3/) [PF](https://microwaverepair.center/error-codes/ge-profile-pf/) [ERR](https://microwaverepair.center/error-codes/ge-profile-err/) [LOC](https://microwaverepair.center/error-codes/ge-profile-loc/) [OVEN TOO HOT](https://microwaverepair.center/error-codes/ge-profile-oven-too-hot/) [FOOD](https://microwaverepair.center/error-codes/ge-profile-food/) [F1](https://microwaverepair.center/error-codes/ge-profile-f1/) [F2](https://microwaverepair.center/error-codes/ge-profile-f2/) [F5](https://microwaverepair.center/error-codes/ge-profile-f5/) 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/) [JennAir E11](https://microwaverepair.center/error-codes/jennair-e11/) [KitchenAid F3H1](https://microwaverepair.center/error-codes/kitchenaid-f3h1/) [All 41 codes of this kind](https://microwaverepair.center/error-codes/#family-sensor) GE Profile 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. GE Profile 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. GE Profile 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 GE Profile's own words > F4 Open humidity sensor [GE Appliances microwave code article, linked from the PVM9005SJSS owner center](https://products.geappliances.com/appliance/gea-support-search-content?contentId=16575) [GE Profile PVM9005SJSS owner center, troubleshooting page](https://products.geappliances.com/appliance/gea-specs/PVM9005SJSS/troubleshoot) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. From GE's microwave code article, linked on the PVM9005SJSS support page. Sensor-cooking models such as the PVM9005 and PVM9179 are the ones that carry a humidity sensor. ## GE Profile F4 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 Cancel/Off and try a Cook Time run to confirm the microwave still heats. If it comes back, it needs a visit. ### Can I keep using my GE Profile microwave with F4? Timed cooking usually still works. Sensor programs will not until the humidity sensor is fixed. ### Is F4 the same as SENSOR ERROR on a GE Profile? No. SENSOR ERROR follows a cooking situation; F4 is the control reporting the sensor circuit open. ### What part fixes F4 on a GE Profile hood microwave? Usually the humidity sensor or its connector, confirmed by testing before anything is ordered. --- **[Read on the site: GE Profile F4: the humidity sensor reads open](https://microwaverepair.center/error-codes/ge-profile-f4/)** **[Book a visit with MicrowaveRepair.center](https://microwaverepair.center/schedule/)**