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Outdoor board failure
module board failure between
outdoor board and module
board
EE10
Communication wire is broken
Outdoor board or module
board failure
Restart the power supply or
change the broken board
Module board failure
EE11
The data is wrong or the
module board is broken
Restart the power supply or
change the broken board
Direct main current’s voltage
too high or too low protection
EE12
The pressure is too high or too
low
The inner communication
contactor is broken
Check the power supply
Change the contactor
Over current protection
EE13
Electric supply pressure is too
low, the heat pump is overload
Check the power supply
Check the water temperature
whether it is too high
IPM module temperature
sensing circuit output
failure
EE14
IPM module temperature
sensor output is abnormal
Check the PC board or
replace the new one
IPM module temperature
too high protection
EE15
Check the PC board or
replace the new one
Malfunction
Error code
Reason
Solution
PFC module protection
EE16
Check the PC board or
replace the new one
DC fan failure
EE17
Check the PC board or
replace the new one
PFC module temperature
sensing internal circuit
failure
EE18
Check the PC board or
replace the new one
PFC module high
temperature protection
EE19
Check the PC board or
replace the new one
Input power failure
EE20
The supply voltage
fluctuates too much
Check the PC board or
replace the new one
Software control failure
EE21
Compressor runs out of step
Check the PC board or
replace the new one
Current detection circuit
failure
EE22
The amplifier output
voltage signal is abnormal
Check the PC board or
replace the new one
Compressor start failure
EE23
Check the PC board or
replace the new one
Driving board ambient
temperature bulb failure
EE24
Compressor phase failure
EE25
1. Wiring wrong
2. Connection of 1 phase or
2 phases.
Monitoring the controller
28


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