7 - CONTROL
LIST OF ALARMS
Visualisation of
Visualisation of code on
code on indoor
moto-condensing unit
unit keypad
board
E36
-
E37
-
E38
-
E46
-
E47
H0
E58
-
E59
Pd
E60
H7
E61
HF
E62
HH
E63
F1
Description
Return temperature probe of secondary
C2
Supply temperature probe of secondary
C2
Thermal pump of secondary C2
Boiler alarm
Communication failure ODU Module
DHW heat exchanger inlet - System
(solar heating) temperature probe
High Temperature protection of coil
condenser (T3)
Power supply voltage malfunction
Outdoor chip EEPROM malfunction
Fan motor malfunction H6 happened
10 times in 120 minutes, manually
reset by power off. (Need power
refresh)
DC generatrix voltage too lower (Main
relay keep open)
Possible cause
faulty or disconnected sensor
faulty or disconnected sensor
pump high absorption - air in the installation - defective
wirings - faulty pump
Blocked boiler *
Wire doesn't connect between indoor unit and outdoor unit.
Connect the wire.
Communication wire sequence is not right. Reconnect the
wire in the right sequence.
Whether there is a high magnetic field or high power
interfere, such as lifts, large power transformers, etc.
To add a barrier to protect the unit or to move the unit to the
other place.
faulty or disconnected sensor
Energy exchanger coil dirty or obstructed
Heat exchanger is dirty or something is block on the
surface. Clean the heat exchanger or remove the
obstruction.
Fan is not running. Fan motor or fan is broken, Change a
new fan or fan motor.
Whether the power supply input is in the available range.
Power off and power on for several times rapidly in short
time. Remain the unit power off for more than 3 minutes
than power on.
The circuit defect part of Main control board is defective.
Replace a new Main PCB.
The EEprom parameter is error, rewrite the EEprom data.
EEprom chip part is broken. Change a new EEprom chip
part.
Main PCB is broken, change a new PCB.
See E23/H6
If F1 appears when power on check wiring of the unit.
Check the communication between main board and driver
board.
Check if the PTC is hot or not if it is hot power off the
unit and wait the temperature drop down and power on
again.
Check the DC generatrix voltage if it is low check the
bridge rectifier and module board.
TAB 3
A
A
A/M
A
A
A
A
A
A
A
A
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