LG Refrigerator Error Code FF 1

FF 1 indicates that the refrigerator has entered Forced Operation Mode 1, which locks the inverter compressor at a fixed speed of 3600 RPM. This bypasses the normal variable-speed control logic. It is most often activated intentionally during service diagnostics but can also be triggered accidentally through a control panel button combination.

Running in FF 1 for short periods during diagnostics is generally safe, but the mode is not intended for continuous normal use. At 3600 RPM, the compressor is at maximum speed, which can generate more heat and wear than normal variable-speed operation. The mode should be exited as soon as the diagnostic purpose is complete.

If FF 1 was triggered accidentally or during service, there is no repair cost since exiting the mode requires only a button sequence or power reset. If the issue is traced to a faulty main control board, replacement parts and labor typically range from $150 to $400 depending on the specific model and service rates in your area. A technician visit to diagnose and exit a stuck forced operation mode generally costs between $75 and $150 for the service call alone.

The most common way to exit FF 1 is to press the same button combination used to activate it, which toggles the forced operation mode off. If the button sequence is unknown, unplugging the refrigerator for 5 to 10 minutes and restoring power will typically reset the control board and clear the mode. If FF 1 returns on its own without any button input, a control board issue may need further diagnosis.

Yes, in most cases a power reset by unplugging the unit for several minutes will clear FF 1 and return the refrigerator to normal operation. However, if the mode was activated through the control panel, using the correct button sequence to exit it is the preferred method. If the code reappears after resetting without any user input, a control board fault may be involved.