The F3 error code on a GE oven indicates an issue related to the temperature sensor. However, fixing it isn’t always as simple as replacing the sensor itself, since the problem could also lie with the wiring or control board. This article will guide you through all the potential scenarios that could be causing the F3 error to appear and provide step-by-step instructions to fix them.
What does the temperature sensor do?
The temperature sensor on a GE oven continuously measures and regulates the temperature inside the oven’s cavity. It sends readings back to the control board, which cycles the heating element on and off to maintain the desired cooking temperature.
What happens when you get the F3 error code?
When the temperature sensor is unable to function properly, it becomes a safety hazard. This malfunction can lead to the oven overheating or underheating, which increases the risk of issues such as fire and food poisoning.
The F3 error code displays and disables the appliance when issues related to the temperature sensor occur, preventing such risks. While the F3 error code is present, a GE oven will not run or function properly in most cases.
How to fix the F3 error code on GE ovens
As mentioned, how you can fix the F3 error code on GE ovens will depend on the exact cause of the problem. Still, there is a logical way to approach this, starting with the simplest and most likely fixes before progressing to more complicated repairs.
Reset your GE oven or range
Sometimes the F3 error code may appear due to a temporary glitch. When this is the case, resetting the oven’s control board can potentially resolve the F3 error. Since this is such a simple solution, it’s worth trying if you haven’t already.
Here’s how to reset a GE oven or range:
- Unplug the appliance or switch it off at the circuit breaker.
- Wait for 3 minutes.
- Plug in the appliance or turn it back on at the circuit breaker.
- Monitor the oven to see if the error recurs.
Check the wiring and connections
In some cases, corroded or loose connections can cause the F3 error by interfering with signal transmission between the temperature sensor and the control board. Similarly, damage to the wires leading to and from the sensor can result in electrical issues that cause the F3 error.
It makes sense to check for loose connections or corrosion first before replacing components. Here are the steps to do so:
- Unplug the oven or switch it off at the circuit breaker.
- Pull the oven away from the wall and remove the back panel using a screwdriver.
- Locate the temperature sensor, a thin metal rod extending through the back panel of the oven’s cavity.
- Examine the entire length of the wires from the temperature sensor to the control board for damage such as cuts, fraying, or burns.
- Check whether the connections are corroded or rusted and gently wiggle them to see if they’re secure or loose.
- Any damaged sections of the wiring will need to be cut out and replaced.
- Clean any corroded connections with contact cleaner or fine-grit sandpaper. You may be able to tighten loose connections with your fingers or pliers.
Test and replace the temperature sensor
If the wiring and connections appear fine, but resetting the appliance didn’t resolve the F3 error, it’s time to test the temperature sensor for faults. This can be done using a multimeter set to measure resistance (ohms).
Follow these steps to test and replace the temperature sensor:
- Ensure the oven is unplugged or the power is turned off at the circuit breaker.
- Locate the temperature sensor, as described in the previous section.
- Remove any mounting screws securing the temperature sensor to the oven using a screwdriver.
- Disconnect the wires connected to the temperature sensor.
- Press the multimeter probes against the temperature sensor’s terminals.
- At room temperature (around 25°C or 77°F), the sensor should read between 1,000 and 1,100 ohms.
- If the reading is significantly different or there’s no reading (infinite resistance), the sensor is likely faulty and needs replacing.
- Order a new replacement sensor from an online retailer or appliance parts store.
- Install the new temperature sensor by securing it with mounting screws and reconnecting the wires.
Check the control board
If the temperature sensor, its wiring, and connections are all fine, yet the F3 error persists, there’s likely an issue with the control board. Unlike the temperature sensor, you cannot easily test the control board with a multimeter. Replacing the control board is a complex, expensive repair that should only be carried out by a professional.
However, you can check for obvious signs of damage to the control board yourself before calling in a professional. To do so, follow these steps:
- Unplug the oven or switch it off at the circuit breaker.
- Remove the oven’s back panel or cover panel to access the control board, usually located at the top back of the oven.
- Inspect the control board for any obvious signs of damage, such as burning, charring, warping, or swollen capacitors.
- Perform a smell test to check for any burnt odor.
Consider hiring a professional
If you haven’t been able to resolve the F3 error code yourself and suspect an issue with the control board, it’s time to consider hiring a professional to repair your oven.
You can research the cost of a replacement control board online to get a good idea of the part’s price. Then, call several appliance repair professionals for quotes on the total repair cost.
With this information, you can weigh the estimated repair costs against the price of a new oven to determine whether repairing your current GE oven is a worthwhile investment.