Gree air conditioner appears fo the fastest solution

The appearance of FO error code in Gree air conditioner usually indicates a communication failure between the outdoor unit and the indoor unit. Here is the fastest solution:

1. Check if the power supply of the air conditioner is normal, make sure the power cord is firmly connected.

2. Check whether the communication line between the indoor unit and the outdoor unit is firmly connected and not damaged.

3. Check the communication line between the indoor unit and the outdoor unit for interference, such as electromagnetic interference.

4. Restart the air conditioning system, sometimes restarting can solve the communication failure.

If the above methods do not solve the problem, it is recommended to contact a professional air conditioning repairer for overhaul.