Stand by
Normal running
Lower tank water temp sensor failure
Upper tank water temp sensor failure
Coil temp sensor failure
Air return temp sensor failure
Ambient temp sensor failure
High pressure protection
Low pressure protection
Over heat protection
Defrosting
Communication failure
2. "E heater only"
If the E-heater button
heater will work only, until the temperature of the upper tank (5) reaches the set temperature TS2;
LED icons description
Hot water available
Fan ventilation
Electrical heating
Defrosting
Heating
Key lock
Left temperature
display
Right temperature
display
Time display
Timer 'ON'
Timer 'OFF'
Error
Error
on the control panel has been turned on manually when the unit is in standby mode, the E-
MEANING OF LED ICONS!
The icon indicates that the domestic hot water temperature reaches the set point.
The hot water is available for use. Heat pump is standby
The icon indicates that the fan ventilation function is enabled.
The icon indicates that the electrical heating function is enabled. The electrical
heater will work according to the control program.
The icon indicates that the defrosting function is enabled. This is an automatic
function, the system will enter or exit the defrosting according to the inner control
program
The icon indicates that the current operation mode is Heating.
The icon indicates the key lock function is enabled. The keys cannot be operated
until this function is disabled
The display shows the set water temperature. In case any malfunction occurs, this
section will display the related error code.
When checking or adjusting the parameters, this section will display the related
parameter value
The display shows the clock time or timer time.
The icon indicates that the timer 'ON' function is enabled.
The icon indicates that the timer 'OFF' function is enabled.
The icon indicates there is malfunction.
Code
Dark
Bright
☆●(1 flash 1 dark)
P1
☆☆●(2 flash 1 dark)
P2
☆☆☆●(3 flash 1 dark)
P3
☆☆☆☆●(4 flash 1 dark)
P4
☆☆☆☆☆●(5 flash 1 dark)
P5
☆☆☆☆☆☆●(6 flash 1 dark)
E1
☆☆☆☆☆☆☆●(7 flash 1 dark)
E2
☆☆☆☆☆☆☆☆●(8 flash 1 dark)
E3
☆☆☆☆☆☆☆☆......(long flash)
E8
Bright
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LED indicator