Air-to-water Heat Pump
56
MONOBLOC
TYPE
Code Indication Error Name Source of Error Signal Control Description
E6
Communication
malfunction(between
outdoor and indoor
mainboard0.
①
The communication line of
the unit is not connected.
②
The communication
line is not through.
③
The communication
line of the unit is not
connected correctly.
④
The two ends of
communication line
are not mounted with
magnetic ring.
⑤
The outdoor unit is not
electrically powered
It will be cleared once
communication recovers or it
will be shown all the time
E6
Communication
malfunction(between
outdoor mainboard and
wired controller)
①
The communication line of
the unit is not connected.
②
The communication
line is not through.
③
The communication
line of the unit is not
connected correctly.
④
The two ends of
communication line
are not mounted with
magnetic ring.
⑤
The outdoor unit is not
electrically powered
It will be cleared once
communication recovers or it
will be shown all the time
Fc High pressure switch error
①
The sensor is damaged.
②
The wire of the
sensor is loose.
③
The position of the
sensor is wrong
It will be automatically
cleared after the failure is
removed.
F9
Outlet temperature sensor
error
①
The plug on temperature
sensor is not correctly
connected to the socket
on mainboard.
②
The resistance of
temperature sensor
is not correct.
It will be automatically
cleared after the failure is
removed.
dH
Backup outlet temperature
sensor error
①
The plug on temperature
sensor is not correctly
connected to the socket
on mainboard.
②
The resistance of
temperature sensor
is not correct.
It will be automatically
cleared after the failure is
removed.
F1
Lliquid pipe temperature
sensor Inside refrigerant
error
①
The plug on temperature
sensor is not correctly
connected to the socket
on mainboard.
②
The resistance of
temperature sensor
is not correct.
It will be automatically
cleared after the failure is
removed.
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