Frigidaire Range Error Code F027

F027 means the oven's user interface board and relay board cannot establish communication with each other. This prevents the oven from operating because the two boards need to exchange data to control cooking functions. The fault can be caused by a wiring issue, a power-related lockup, or a failed control board. Disconnecting power for 30 seconds is the recommended first step to attempt a reset.

When F027 is active, the oven cannot operate normally because the two control boards cannot communicate, so there is no functional risk of uncontrolled heating. However, you should not attempt to bypass or ignore the error and force operation. Leave the range unplugged until the fault is diagnosed and resolved to avoid any risk from an unmonitored electrical fault.

Repair costs vary depending on the root cause. If the fix is a loose harness connector, there may be no parts cost and only a service call fee, typically in the range of $75 to $150. If a control board needs to be replaced, parts alone can range from $100 to $300 or more depending on the specific board, with labor adding to the total. Getting a diagnostic assessment before committing to a repair is advisable to confirm which component has failed.

A power reset will clear the F027 code if the cause was a temporary firmware lockup due to a power fluctuation or transient event. Disconnect the range from power for at least 30 seconds, then reapply power and test the oven. If the code returns immediately or after a short period of use, the fault is persistent and requires a physical inspection of the wiring harness and control boards.

Start by disconnecting power to the range for 30 seconds and then restoring it to see if the code clears. If the code persists, the next step is to inspect the wiring harness between the user interface board and the relay board for loose connectors, damaged pins, or broken wires. If the harness is intact and secure, one of the two control boards has likely failed and will need to be replaced. A qualified technician can test each board to determine which component is at fault.