Frigidaire Range Error Code F19

The F19 error means the Oven User Interface Board is unable to configure the Oven Relay Board. These two boards must communicate successfully for the oven to operate, and when that communication fails, the F19 code is displayed. The fault can stem from loose wiring connectors, a damaged harness, or a defective board.

No, you should not attempt to use the oven while the F19 error is active. The fault indicates the relay board that controls the heating elements is not under proper control from the UI Board, which means the oven cannot operate reliably or safely. Disconnect power and address the fault before using the appliance.

A power reset may clear the code temporarily, but if the underlying cause is a loose connector, damaged wiring, or a failing board, the F19 error will return. A permanent fix requires identifying and correcting the root cause, whether that is reseating connectors, repairing the wiring harness between MACS1 and J3, or replacing a defective board.

Yes, a power reset is the recommended first step. Disconnect the range from its power supply, wait at least 30 seconds, then restore power. If the F19 code does not return, the issue was likely a temporary communication glitch. If the code comes back, further diagnostic work on the wiring and boards is needed.

If the fix is simply reseating a loose connector, there is no parts cost involved. If a wiring harness needs replacement, parts and labor could range from roughly 75 to 200 dollars. Replacing the Relay Board or UI Board typically costs between 150 and 400 dollars depending on the specific board, part availability, and local labor rates.