W'eau WMP-003, Installation & Operation Manual

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6. Trouble shooting
6.1 Error code on the LED controller
Malfunction Code Reason Solution
Water temperature
sensor failure
P1
Water temperature sensor open
circuit or short circuit.
1. Check the sensor wiring.
2.Replace the new water temperature
sensor.
Piping temperature sensor
failure
P3
Piping temperature sensor open
circuit or short circuit.
1. Check the sensor wiring.
2.Replace the new piping temperature
sensor.
Ambient temperature
sensor failure
P5
Ambient temperature sensor
open circuit or short circuit.
1. Check the sensor wiring.
2.Replace the new water temperature
sensor.
Too low or too high
ambient temperature
protection
P7
1. Ambient temperature is out of
operating range:11
℃
- 42
℃
.
2. Controller failure.
1. Wait the ambient temperature rising
to 13
℃
or cooling down to 40
℃
to
restart.
2. Replace the new controller.
Water flow failure E3
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.