9.2 Failure code Checking
When a failure occurs, it will show failure symbol on the screen.Press (≤2seconds) you can check the
failure code. You can press it again to check another failure code if more than one occurs.Press or to
exit.
Short press (≤2seconds)
Press or button to exit.
Short press (≤2seconds)
Failure code display area,“ E-“ means no failure. If another faiure code,
please refer to the bottom of this page in [Common failures and maintenance],
the corresponding failure to understand the cause and solutions.
Normal display
Normal display
Press or button to exit.
Flash
Flash
State of turning on
State of turning off
Hot Water Series
34
9.3 Common failures code
failures
Refrigerant leak(system 1)
PF
Refrigerant leak(system 2)
EF
High pressure protection/Pressure valve break down (system 1)
E4
High pressure protection/Pressure valve break down (system 2)
E8
Water outlet temp. sensor failure
E1
Evaporator coil temp. sensor failure (system 1)
P1
Evaporator coil temp. sensor failure (system 2)
P5
Discharge gas temp. sensor failure (system 2)
P6
Discharge temp. protection( )(system1)Discharge temp. is too high
E3
Low pressure protection/Pressure valve break down (system 2)
EA
Display
Low pressure protection/Pressure valve break down (system 1)
P9
Water tank temp. sensor failure
P3
Discharge gas temp. sensor failure (system 1)
P2
Discharge temp. protection(Discharge temp. is too high)(system2)
E7
Ambient temp.sensor failure
P7
Error phase or lack of phase with power supply
PA
Water flow fault or water flow switch breakdowm
Pd
PCB’s memory fault
E5
LCD controller fault
En
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