During maintenance, water can't be stopped, it can't be started, it can't be heated, and water pipes can be replaced and maintained.
Four Seasons Muge solar energy fault code:
E 1: The controller current is too large, the controller is overheated, the exhaust temperature is high, and the module is protected. Check whether the overload protector is disconnected and the temperature sensor of the controller is short-circuited.
E2: indoor evaporator antifreeze protection.
E3: Short circuit or open circuit of indoor temperature sensor.
E4: Short circuit or open circuit of indoor evaporator tube temperature sensor.
E5: Indoor and outdoor communication failure.
Solution of solar energy fault code E3 in Four Seasons Muge;
E3 water low voltage protection, or the low voltage switch is changed, you can find the low voltage switch and measure it with a multimeter. If the low voltage switch is good when the power is cut off, it means that the water temperature is too low.
Four Seasons Muge solar energy fault code E3 protection controller has low suction pressure, so it is recommended to check:
1. Is the circulating air volume of the indoor unit too small?
Solution: Clean the water tank.
2. System failure?
Solution: Add refrigerant.
E3 low-voltage protection, when the solar system is pressurized, check whether there is oil pollution or oil leakage at the bell mouth thread, stop valve and the joint of internal and external machines, and repair the leakage point according to the fluorine content on the nameplate.
Four seasons muge solar boot protection, indicator light flashing. After inspection, the resistance of each sensor is normal and the power supply of the motherboard is normal. It is suspected that the motherboard is broken, and the phenomenon of replacing the motherboard (internal and external machine boards) remains the same. The maintenance was almost interrupted, but when the same machine was repaired in the next room that day, no one was there.
Four seasons muge solar energy will be protected when it is turned on, and the indicator light will shine.
After inspection, the resistance of each sensor is normal and the power supply of the motherboard is normal. It is suspected that the motherboard is broken, and the phenomenon of replacing the motherboard (internal and external machine boards) remains the same.
The maintenance was almost interrupted, but when I was repairing the same machine in the next room that day, I accidentally forgot to plug in the air guide motor, and the fault phenomenon was the same as last time.
After replacing the air guide motor, troubleshooting of solar energy in Four Seasons Muge.