GE Café Oven Error Code F2: Temperature Threshold... | appliancefaults.com

Technical Background:

The oven's MCU (Main Control Unit) monitors the oven temperature via the RTD (Resistance Temperature Detector) sensor. The RTD's resistance changes with temperature, providing a voltage signal to the MCU. The MCU interprets this signal and controls the heating elements. An F2 error indicates the MCU detected a temperature exceeding the set limit (usually above 650°F), which could indicate a faulty sensor or control board.

Symptoms:

The homeowner observes that the oven displays an F2 error code. The oven may or may not be overheating, and the error code may appear intermittently or constantly.

Possible Causes:

Faulty oven temperature sensor (RTD).
Shorted wiring to the RTD sensor.
Malfunctioning oven control board (MCU).
Stuck or shorted relay on the control board.
Excessive oven temperature due to calibration issues.

Solution:

1

Disconnect power to the oven at the breaker panel.
2

Locate the oven temperature sensor (RTD) inside the oven cavity, usually at the rear. Use a 1/4-inch nut driver to remove the mounting screws.
3

Disconnect the RTD sensor wires from the oven control board.
4

Using a multimeter, measure the resistance of the RTD sensor. A typical reading at room temperature (70°F) should be around 1080 ohms. Consult the service manual for specific values.
5

Inspect the wiring harness connecting the RTD sensor to the control board for any signs of damage, shorts, or loose connections.
6

If the RTD sensor resistance is out of range or the wiring is damaged, replace the RTD sensor.
7

If the RTD sensor and wiring are good, replace the oven control board. Reconnect all wiring and restore power to the oven at the breaker panel.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lock-Out/Tag-Out (LOTO) procedures should be followed to prevent accidental power restoration. The oven operates on 240V AC, which can cause serious injury or death.

Prevention:

Regularly clean the oven interior to prevent grease buildup which can affect temperature sensing. Inspect the oven temperature sensor wire harness periodically for signs of wear or damage.

Expert Tip:

Some GE Café ovens have a service mode where you can calibrate the oven temperature. Consult the service manual for the specific sequence to enter service mode and perform temperature calibration. Incorrect calibration can also cause F2 errors.

Frequently Asked Questions

•What is the proper RTD resistance at different temperatures?

Refer to the service manual for a temperature-resistance chart specific to the GE Café oven model. The resistance increases with temperature.

•How do I access the oven control board?

The oven control board is typically located behind the control panel. You will need to remove the screws securing the control panel to access it. Disconnect power first!

•Can a faulty door seal cause this error?

A faulty door seal can lead to temperature fluctuations and potentially trigger an F2 error if the oven overheats, but it is a less common cause.

GE Café Oven Error Code F2: Temperature Threshold Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the proper RTD resistance at different temperatures?

•How do I access the oven control board?

•Can a faulty door seal cause this error?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: