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Installation & Owner's Manual
Table.6-1
Table.6-2
6.4 Error phenomenon shooting
Error
phenomenon
Possible reason solution
Cold water
out and
display screen
extinguished
No hot water
out
Water leakage
Hydraulic pipeline joints
are not sealed well.
Bad connection between power supply plug
and socket;
Setting water temperature too low;
Temper sensor broken ;
PCB of indicator broken ;
Compressor broken.
Plug in;
Setting water temp. higher;
Contact service center.
Waiting for public water supply recover;
Waiting for inlet water pressure increase;
Open water inlet valve.
Check and reseal all joints.
Public water supply ceased;
Cold water inlet pressure too low (<0.15 MPa);
Cold water inlet valve closed.
Malfunction Description Corrective action Display
Error of sensor T5U(upper water temperature sensor) E0
Maybe the connection between sensor and PCB is broken
or sensor has been broken.
Contact a qualified person to service the unit.
Error of sensor T5L(lower water temperature sensor) E1
Maybe the connection between sensor and PCB is broken
or sensor has been broken.
Contact a qualified person to service the unit.
Tank and Wired Controller communication error E2
Maybe the connection between controller and PCB is broken
or PCB has been broken.
Evaporator temperature sensor T3 error E4
Maybe the connection between sensor and PCB is broken
or sensor has been broken.
Contact a qualified person to service the unit.
ambient temperature sensor T4 error E5
Maybe the connection between sensor and PCB is broken
or sensor has been broken.
Contact a qualified person to service the unit.
Compressor discharge temperature sensor TP error E6
Maybe the connection between sensor and PCB is broken
or sensor has been broken.
Contact a qualified person to service the unit.
E8
Electric leakage error
If PCB current_induction_circuit check the current
difference between L,N >14mA, system consider it as
"electric leakage error"
Maybe some wires have been broken or bad wire
connection.
Contact a qualified person to service the unit.
Compressor suction temperature sensor TH error E9
Maybe the connection between sensor and PCB is broken
or sensor has been broken.
Contact a qualified person to service the unit.
EE
E-heater open-circuit error( IEH(Current difference
E-heater on & E-heater off )<1A)
Maybe the E-heater has been broken or bad wire
connection after repair.
Clock chip error EF
Maybe the chip has been broken, but unit can work well
without clock-menmory, so it is needed to reset clock
when power put on again.
If necessary, contact a qualified person to service the
unit.
6.5 Error code shooting table
E-EPROM chip error Contact a qualified person to service the unit.
Ed
P1
System high pressure protection
3.0MPa active
;≤
2.4MPa inactive
System blocked, air or water or more refrigerant
in system(after repair), water temperature
sensor malfunction, ect.
Contact a qualified person to service the unit.
18


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