Whirlpool Oven Error Code F3 E2: Wire Harness Repair... | appliancefaults.com

Technical Background:

The F3 E2 error code on a Whirlpool oven typically indicates a problem with the oven temperature sensor (RTD - Resistance Temperature Detector) circuit. The EOC (Electronic Oven Control) monitors the resistance of the RTD to determine the oven temperature. If the EOC detects an out-of-range resistance value, or an open/shorted circuit, it will display the F3 E2 error.

Symptoms:

The homeowner reports that the oven displays an F3 E2 error code. The oven may or may not heat properly. Sometimes, the error appears intermittently. The display could show fluctuating temperatures before the error code appears.

Possible Causes:

Faulty oven temperature sensor (RTD).
Shorted or open RTD sensor wiring harness.
Loose connection at the electronic oven control (EOC) board.
Defective electronic oven control (EOC) board.
Intermittent sensor reading due to oven heat.
Damaged wire harness due to rodent activity.

Solution:

1

Disconnect power to the oven at the breaker panel.
2

Locate the oven temperature sensor (RTD) at the rear of the oven cavity.
3

Disconnect the RTD sensor wiring harness connector from the sensor. Visually inspect the connector and wiring for any signs of burning, corrosion, or damage.
4

Using a multimeter, measure the resistance of the RTD sensor. A typical reading at room temperature (75°F) should be around 1080-1090 ohms. Refer to the service manual for precise values for your model.
5

Inspect the wire harness from the RTD sensor to the EOC. Look for any breaks, shorts, or damage. Use your multimeter to check for continuity between the RTD sensor connector and the corresponding pins on the EOC board connector. You might need a wiring diagram.
6

If the RTD sensor and wiring check out okay, the EOC board may be defective. As a final check, ensure you have 120V AC at the control board input.
7

Replace the faulty component (RTD sensor, wiring harness, or EOC board).

Safety Warning:

Disconnect power to the appliance at the breaker panel before performing any repairs. Always use appropriate safety precautions when working with electrical components. This appliance operates at 120V AC and 240V AC; potentially lethal voltages are present.

Prevention:

Periodically inspect the oven's wiring harness for any signs of damage. Keep the area around the oven clean to prevent rodent infestation. Avoid overloading the oven, as excessive heat can stress the components.

Expert Tip:

Some Whirlpool ovens have a service mode. Entering service mode allows you to view sensor readings and run diagnostic tests. Consult the service manual for the specific procedure to enter service mode for your oven model. This can help isolate the problem.

Frequently Asked Questions

•What is the RTD sensor resistance range if the oven is already warm?

The resistance of the RTD sensor will increase as the temperature rises. Consult the oven's service manual for the temperature/resistance chart. Typically, a warm oven will have an RTD resistance between 1200-1600 ohms.

•How do I access the EOC to test the wiring harness connection?

Accessing the EOC usually involves removing the oven's control panel. Disconnect power first! Typically, screws secure the panel to the oven frame. Once the screws are removed, carefully detach the panel, being mindful of any wiring connections. You may need a 1/4-inch nut driver.

•If the RTD sensor tests good, is it safe to assume the EOC board is bad?

Not necessarily. Double-check the wiring harness from the RTD sensor to the EOC board. Look for any breaks, shorts, or loose connections. Use a multimeter to check for continuity. A faulty wiring harness can mimic a bad EOC. Only after confirming the wiring is good should you suspect the EOC.

Whirlpool Oven Error Code F3 E2: Wire Harness Repair Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the RTD sensor resistance range if the oven is already warm?

•How do I access the EOC to test the wiring harness connection?

•If the RTD sensor tests good, is it safe to assume the EOC board is bad?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: