Whirlpool Oven F1 E1 Error: Fan Runs, But No Heat During... | appliancefaults.com

Technical Background:

The F1 E1 error code on a Whirlpool oven typically indicates a communication error between the oven control board (MCU) and the oven temperature sensor (RTD). The MCU relies on the RTD to accurately monitor the oven temperature and regulate the bake element. Incorrect or missing signals lead to the fault. The oven control board reads analog voltage from the RTD, which varies with temperature. This is converted to digital data and used to control relays for the heating elements.

Symptoms:

The oven fan is running, but the oven is not heating up during the bake cycle. An F1 E1 error code is displayed on the control panel.

Possible Causes:

Faulty oven temperature sensor (RTD).
Defective oven control board (MCU).
Wiring harness issue between the RTD and the control board.
Open bake element.
Overheat thermostat tripped.
Igniter circuit fault (gas ovens).

Solution:

1

Disconnect power to the oven at the breaker panel (LOTO).
2

Locate the oven temperature sensor (RTD) inside the oven cavity, usually at the back.
3

Disconnect the RTD and use a multimeter to measure its resistance. A typical reading at room temperature (70°F) should be around 1080 ohms.
4

Inspect the wiring harness between the RTD and the oven control board for any signs of damage or loose connections.
5

Access the oven control board (MCU). Check the voltage at the bake element terminals during bake cycle (should read 240V AC). Use a multimeter.
6

If the voltage is present but no heat, test the bake element for continuity. An open element needs replacing.
7

If no voltage, replace the oven control board.

Safety Warning:

Disconnect power to the oven at the breaker panel before performing any diagnostic or repair procedures. High voltage is present in the oven's electrical components and can cause serious injury or death. Always use proper safety precautions, including wearing insulated gloves and eye protection. Lock Out/Tag Out (LOTO) is mandatory.

Prevention:

Regularly clean the oven to prevent excessive buildup of grease and food debris, which can damage the oven temperature sensor. Avoid using harsh chemicals when cleaning, as they can corrode electrical connections. Consider a yearly licensed technician oven inspection.

Expert Tip:

Many Whirlpool ovens have a diagnostic mode. To access it, press and hold the 'Cancel' and 'Start' buttons simultaneously for 3 seconds. This may provide more detailed error information or allow you to run component tests.

Frequently Asked Questions

•What is the proper RTD resistance at 350 degrees Fahrenheit?

The resistance of the RTD will vary with temperature. At 350°F it should be approximately 1450-1550 ohms. Consult the oven's service manual for the precise resistance chart.

•How do I test the overheat thermostat?

The overheat thermostat is a normally closed switch. Disconnect power, then use a multimeter to test for continuity across the thermostat terminals. If there is no continuity, the thermostat is open and needs to be replaced.

•Where is the oven control board (MCU) located?

The oven control board is typically located behind the control panel, often accessible by removing screws from the top or back of the oven. You may need a 1/4-inch nut driver or a Phillips head screwdriver.

Whirlpool Oven F1 E1 Error: Fan Runs, But No Heat During Bake

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the proper RTD resistance at 350 degrees Fahrenheit?

•How do I test the overheat thermostat?

•Where is the oven control board (MCU) located?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: