W'eau WMIP-003, Руководство по установке и эксплуатации, Страница: 13 / 44

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6. Trouble shooting
6.1 Error code on the LED controller
Code Description Reason Solutions
E03 Water flow failure
1. Insufficient or no water flow.
2. The wiring for water flow
switch is in loose situation. 1. Check the water pump or water piping system.
2. Check the wiring or change a new water flow
switch.
E04 Freezing protection Low ambient temp. It's a protection for the system.
E09 Communication failure
1. Bad connection.
2. Controller or PCB broken. 1. Check the wiring between PCB and controller.
2. Change a new controller or PCB.
E10 Communication failure
1. Bad connection.
2. Controller or PCB broken.
1. Check the wiring between driver board and
controller.
2. Change a new controller or driver board.
E12
High exhaust temp.
protection
Insufficient gas in the system. Check if there is gas leakage in piping system
E15 Inlet temp. sensor failure
Temp. sensor open circuit or
short circuit. 1. Check the sensor wiring.
2. Replace the new temp. sensor.
E16 Piping temp. sensor failure
Temp. sensor open circuit or
short circuit. 1. Check the sensor wiring.
2. Replace the new temp. sensor.
E18
Exhaust temp. sensor
failure Temp. sensor open circuit or
short circuit. 1. Check the sensor wiring.
2. Replace the new temp. sensor.
E20
Abnormal inverter module
failure Check the running situation of
heat pump.
It's a protection for the system.
E21
Ambient temp. sensor
failure Temp. sensor open circuit or
short circuit. 1. Check the sensor wiring.
2. Replace the new temp. sensor.
E46 DC fan motor failure
1. Bad connection.
2. Fan motor broken. 1. Check the wiring of fan motor.
2. Change a new fan motor.