Admiral Oven Error Code F10: Runaway Temperature Alarm... | appliancefaults.com

Technical Background:

The F10 error code on an Admiral oven indicates a 'runaway temperature' condition. The Main Control Unit (MCU) monitors the oven temperature via the Resistance Temperature Detector (RTD). If the MCU detects a rapid and uncontrolled increase in temperature, it triggers the F10 error as a safety precaution. This system relies on accurate sensor readings and functional relays to control the heating element.

Symptoms:

The oven displays an F10 error code and may overheat rapidly. The oven may continue to heat even after reaching the set temperature or may heat to maximum temperature uncontrollably. The oven may shut itself off.

Possible Causes:

Faulty oven temperature sensor (RTD).
Shorted or stuck oven relay on the control board.
Defective main control board (MCU).
Wiring harness issue between the RTD and control board.
Insulation breakdown causing thermal runaway.
Improperly calibrated oven temperature.

Solution:

1

Disconnect power to the oven at the breaker panel.
2

Locate the oven temperature sensor (RTD) inside the oven cavity. It's usually at the top rear.
3

Disconnect the RTD and measure its resistance with a multimeter. A typical reading at room temperature (70°F) is around 1080-1100 ohms. Consult the service manual for the exact spec.
4

Inspect the wiring harness connecting the RTD to the control board for any damage or loose connections.
5

Access the control board (MCU), usually located behind the control panel. Check the oven relay for signs of burning or damage.
6

If the RTD is good and the wiring is intact, replace the control board. These are often pre-programmed.
7

Reconnect power and test the oven. Monitor the temperature with an oven thermometer to ensure it heats correctly.

Safety Warning:

Disconnect power to the oven at the breaker panel before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed. The oven operates at 120V AC or 240V AC. Contact with live voltage can result in serious injury or death.

Prevention:

Periodically check the oven temperature accuracy with an oven thermometer. Avoid using harsh chemicals when cleaning the oven interior, as these can damage the RTD. Ensure proper ventilation around the oven to prevent overheating of the control board.

Expert Tip:

Some Admiral ovens have a service mode that allows you to test the oven temperature sensor and relays. Consult the service manual for the specific key sequence to enter service mode on your model. Often involves pressing a combination of the bake and broil keys simultaneously for 5 seconds.

Frequently Asked Questions

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

The resistance of the RTD sensor varies with temperature. Consult the appliance's service manual for a resistance vs. temperature chart. Generally, resistance increases as temperature increases. Checking the resistance at both room temperature and elevated temperature will help to confirm the RTD's proper operation.

•How do I test the oven relay on the control board?

With the power disconnected, use a multimeter to check for continuity across the relay contacts in both the energized and de-energized states. A properly functioning relay should have continuity when energized and no continuity when de-energized. Check the coil resistance as well; an open coil indicates a bad relay.

•Where can I find a replacement control board (MCU) for my Admiral oven?

Replacement control boards can be found at appliance parts retailers online, such as AppliancePartsPros.com or RepairClinic.com. You will need the model number of your oven to ensure you order the correct part. You can also check with local appliance repair shops.

Admiral Oven Error Code F10: Runaway Temperature Alarm Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

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

•How do I test the oven relay on the control board?

•Where can I find a replacement control board (MCU) for my Admiral oven?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: