Error Code - Wellness NE100 User And Service Manual

5.4.Error Code

Code
Er 03 Water Flow Protection
Er 04 Winter Anti-Freezing
Er 05 High Pressure Protection
Er 06 Low Pressure Protection
Communication Fault between
Er 09
Display and PCB
Communication Fault Of Frequency
Conversion Module(alarm when
Er 10
communication between display and
PCB is disconnected)
Er 12 High Exhaust Temp. Protection
Er 15 Water Inlet Temp. Fault
Er 16 External Coil Temp. Fault
Er 18 Exhaust Temp. Fault
Er 19 DC Fan Motor Fault
12 September 2023/ DH
Description
Check water flow switch, change the switch if
necessary
Water pump will run automatically for first grade
antifreeze
Measure the pressure value when heat pump is
heating(cooling), if it's higher than 44.0 bar, it means
heat pump has got really higher pressure protection:
1. Detect EEV step, low pressure and suction temp;
2. Detect the inlet/outlet water temp,;
3. Maybe there is some air in the refrigeration system;
4.Clean the water exchanger or water filter
(According to actual model) Measure the pressure value
when heat pump is heating(cooling), if it's lower than 6
bar, it means heat pump has got really lower pressure
protection:
1.Maybe there is some leakage in the refrigeration
system;
2.Ambient temp. is too low;
3.There is some blockages on the refrigerant system;
4.Clean the fin heat exchanger.
1.Check if the communication connection wire between
display and PCB is well . Change or mend the wire if
necessary .
Check the PCB or display. If damaged, Change the
corresponding part .
Change PCB.
1.Replace the compressor exhaust Temp. sensor.
2.Reconnect or clean compressor exhaust Temp.
sensor and wrap it with insulation tape.
3.Replace the controller or PC Board.
Check the connection, change the sensor if necessary.
Check the connection, change the sensor if necessary.
Check the connection, change the sensor if necessary.
1.Check DC fan motor. Change it if damaged.
Check output port of DC fan motor on PCB. Change the
PCB if there is no output.
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Reservations
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