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22
Er09
Connection errorbetween
PCB and wired remote
control
Bad connection
Check wiring connections between
remote control and PCB
Defective wired remote control
Replace remote control
Defective PCB
Replace PCB
Er010
Connection error between
PCB and inverter module
Bad connection
Check wiring connections between PCB
and inverter module
Defective invertor module
Replace inverter module
Defective main PCB
Replace PCB
Er12
Vented air temperature too
high
Insufficient refrigerant gas
Check and readjust the refrigerant
volume
Er13
Ambient temp protection
The ambient temp is beyond the unit
working temp range
Unit stops working (please wait)
The sensor is abnormal or too close to the
heat exchanger surface
Change the position for ambient temp
sensor to right position
Er14
Water temperature at outlet
too low for cooling mode
Insufficient water flow
Check water pump operation and
openings of by-pass inlet/outlet valves
Er15
Water intake temperature
sensor malfunction
Sensor disconnected or defective
Reconnect or replace sensor
Er16
Outside coil temperature
error
Sensor disconnected or defective
Reconnect or replace sensor
Er18
Vented temperature error
Sensor disconnected or defective
Reconnect or replace sensor
Er20
Inverter module protection
Defective inverter module
Replace inverter module
Defective compressor
Replace the compressor
Er21
Ambient temperature error
Sensor disconnected or defective
Reconnect or replace sensor
Er27
Water outlet sensor error
Sensor disconnected or defective
Reconnect or replace sensor
Er29
Backed temperature sensor
error
Sensor disconnected or defective
Reconnect or replace sensor
Er32
Outlet temperature too high
for heating mode protection
Insufficient water flow
Outlet temperature too high for heating
mode protection
Er35
Compressor current
protection
The compressor speed is too high
Compressor will be lower the speed
auto
Water temperature is too high
Check water pump operation and
openings of By-Pass inlet/outlet valves
Ambiant temperature is too high; air
volume is too little
Check the fan is working properly and
the air inlet is unobstructed
EN
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