Admiral Range Error Code F20: Control Board Fault... | appliancefaults.com

Technical Background:

The F20 error code on an Admiral range typically indicates an internal fault within the main control board (MCU). The MCU manages oven temperature, timers, and display functions. Voltage paths within the board are monitored by the board's firmware, and an out-of-range voltage or internal communication error triggers the F20 code.

Symptoms:

The oven displays an F20 error code on the control panel and may be non-operational. The oven may not heat up or may exhibit erratic behavior.

Possible Causes:

Control board failure
Loose wiring connections
Voltage supply issue to the control board
Environmental factors (extreme heat or humidity)
Software glitch within the control board's firmware

Solution:

1

Disconnect power to the range at the breaker panel.
2

Access the control board. This typically involves removing the range's back panel or control panel cover using a 1/4-inch nut driver.
3

Inspect all wiring connections to the control board for looseness or damage. Reseat any loose connections.
4

Using a multimeter, verify that the control board is receiving the correct voltage (typically 120V AC) at its power input.
5

If voltage is present and connections are secure, the control board is likely faulty and needs replacement. Order a new control board using the range's model number.
6

Install the new control board, ensuring all wiring connections are properly connected.
7

Restore power to the range at the breaker panel and test its operation.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Follow Lock Out Tag Out (LOTO) procedures. Be aware of potentially high voltage present within the range.

Prevention:

Regularly clean the range to prevent excessive heat buildup. Avoid placing heavy objects on the control panel, which could damage internal components. Ensure proper ventilation around the range.

Expert Tip:

Some Admiral ranges have a service mode that can provide more detailed diagnostic information. To access it, press and hold the 'Bake' and 'Broil' buttons simultaneously for 5 seconds, then use the arrow keys to navigate the menu. Look for voltage readings and error logs.

Frequently Asked Questions

•How do I find the correct replacement control board for my Admiral range?

Locate the model number of your range, usually found on a sticker inside the oven door or on the back panel. Search online appliance parts retailers using the model number to find the correct control board.

•What voltage should I expect to see at the control board terminals?

Typically, you should see 120V AC at the main power input terminals of the control board. Consult the range's wiring diagram for specific voltage requirements for other terminals.

•Is it possible to reset the control board without replacing it?

In some cases, disconnecting power to the range for 15-20 minutes may reset the control board and clear the error code. However, if the code reappears, the control board is likely faulty and needs replacement.

Admiral Range Error Code F20: Control Board Fault Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I find the correct replacement control board for my Admiral range?

•What voltage should I expect to see at the control board terminals?

•Is it possible to reset the control board without replacing it?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: