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.
Please check the evaporator coil temperature sensor at first because E3 means this sensor is short or open; If necessary, please replace it with a new sensor.
1) Fan motor noise (blockage or the fan capacitor is aging); 2) Fan motor electromagnet noise (change a new one);
Operating a PHNIX hot water heat pump instead of a standard electric model could help a household avoid up to 62% of CO2 emissions on the grid from water heating.
The range of ambient running temperature of the unit?among -7℃-43℃.
You can solve the problem according to such points: 1) Check whether the filter is blocked; 2) Check whether the water flow rate is higher than the rated rate;
Please check the high pressure switch itself and the system pressure at first because HP1 means the system pressure is too high;
Please check whether your set temperature is correct, your set temperature may be lower than your current water temperature.
Please get in touch with native distributors of Phnix.