Whirlpool AccuBake Oven Temperature Too Low: Resetting... | appliancefaults.com

Technical Background:

The Whirlpool AccuBake system uses a 6th Sense control, which relies on feedback from the RTD (Resistance Temperature Detector) to maintain the set temperature. The MCU (Microcontroller Unit) on the control board reads the resistance value from the RTD, converting it to a temperature reading. This reading dictates the voltage supplied to the heating element via relays. A fault in any part of this circuit can cause a low temperature condition.

Symptoms:

The Whirlpool AccuBake oven takes an excessively long time to preheat. Food is undercooked even after extended cooking times. The oven temperature displayed on the 6th Sense control panel seems inaccurate. The user may have attempted to reset the control by unplugging, but the problem persists.

Possible Causes:

Faulty oven temperature sensor (RTD).
Defective oven control board (MCU).
Calibrated temperature offset is incorrect.
Malfunctioning heating element.
Stuck or defective oven relay.
Wiring harness damage between sensor and control board.

Solution:

1

Disconnect power to the Whirlpool AccuBake oven at the breaker panel.
2

Locate the oven temperature sensor (RTD) inside the oven cavity. 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 (75°F) should be around 1080 ohms. If the reading is significantly different, replace the sensor.
5

Inspect the heating element for any signs of damage, such as breaks or blisters. If damaged, replace the heating element.
6

Check the oven relay on the control board for continuity. Use a multimeter to verify that the relay is switching properly when the oven is turned on. Verify 120V AC at the heating element when oven is on.
7

If all components test good, the oven control board (MCU) may be faulty and require replacement.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lockout/Tagout (LOTO) procedures must be followed to prevent accidental re-energization of the circuit. High voltage (120V AC and 240V AC) is present in the oven, posing a risk of electric shock.

Prevention:

Periodically clean the oven cavity to prevent food buildup that can affect temperature sensing. Avoid using harsh chemicals that could damage the RTD sensor. Calibrate the oven temperature annually per the owner's manual instructions.

Expert Tip:

Many Whirlpool AccuBake models have a hidden service mode. To enter service mode, press and hold the Bake and Broil buttons simultaneously for 3 seconds. This allows you to view error codes and adjust calibration settings. Refer to the service manual for specific codes and adjustments.

Frequently Asked Questions

•What is the correct resistance range for the RTD sensor at different temperatures?

Refer to the service manual or the manufacturer's specifications for the specific model. The resistance value varies with temperature, and a chart is typically provided.

•How do I calibrate the oven temperature on my Whirlpool AccuBake model?

Refer to your owner's manual for the specific steps. Calibration typically involves entering a service mode or adjustment through the control panel. If you can't find the manual, search online using your model number.

•Where can I find the service manual or schematic diagram for my Whirlpool AccuBake oven?

You can usually find service manuals and schematics online by searching with your specific model number. Websites like AppliancePartsPros.com or RepairClinic.com often have these resources available for download, sometimes for a small fee. Contacting Whirlpool directly is another option.

Whirlpool AccuBake Oven Temperature Too Low: Resetting 6th Sense Control

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the correct resistance range for the RTD sensor at different temperatures?

•How do I calibrate the oven temperature on my Whirlpool AccuBake model?

•Where can I find the service manual or schematic diagram for my Whirlpool AccuBake oven?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: