Please check the water system at first because FL means the water volume is not enough or the water system is jammed or the water pump is broken.
1) Check fan relay (if it's broken, change a new one); 2) Check fan capacitor (change a new one);
Please check the power source (lack of a phase or an error of phase). The compressor capacitor is broken down, change a new one. The compressor relay is broken down.
The technical terms of PHNIX hot water heat pump are based on the Department of Energy test procedure which is performed at an ambient room temperature of 15℃.
Leakage of refrigerant or a lack of refrigerant, please check the leaking point and vacuum again, charge the refrigerant with certain amount stated on the logo.
Modern inverter heat pumps have a greater capacity for variations in the temperature. That is because they can increase or decrease their output. But there is obviously a limit...
ECO Mode: The heat pump removes heat from the surrounding air, heats the water and moves the cooler air back into the room.
The PHNIX hot water unit is shipped from the factory at 55℃.
The PHNIX hot water heat pump will not work without electrical power. When power is restored after an outage, the water heater will go through the dry fire process then automatically revert back to the original user setting.
Please check the water volume and water system at first because A1 means the water volume is too small or the water system is jammed.