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.
Mon–Sat, 8am–8pm
- Sensors and temperature
- Microwave control board and touchpad repair
- Source: GE Profile
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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 microwaveKind of codeSensors 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 toMicrowave 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 asWhat 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.
MakeGE 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.
SourceGE 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.
Press Cancel/Off and try a Cook Time run to confirm the microwave still heats.
Reset the breaker for 30 seconds.
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. 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
Where F4 usually leads
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 repairMore GE Profile codes
Sensors and temperature on other makes
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.
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.
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
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.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about F4.
Can I clear F4 myself?
Can I keep using my GE Profile microwave with F4?
Is F4 the same as SENSOR ERROR on a GE Profile?
What part fixes F4 on a GE Profile hood microwave?
Back to your everyday
Still showing F4?
Three details make the booking useful: the characters or beeps just as they appeared, every character of the model number, and whether a cup of water still warms up. With those, the technician arrives already halfway to the answer.