Gree SXVD200LCJ2/A-M - Page 109

AIR-TO-WATERHEATPUMP MAINTENANCE
103
E1
Comp High-pressure
protection
z Comp High-pressure switch is
broken or the wiring is loose.
z The water in the tank is not
enough.
z The installation of tank temp
sensor is not correct.
z The gas valve and liquid valve
are not fully open.
z The electric expansion valve
can not work normally.
De-energize the unit and then,
energize it again. If the
malfunction is removed, the
code will be cleared.
E3
Comp Low- pressure
protection
z Comp Low-pressure switch is
broken or the wiring is loose.
z The system has leaked.
z The fans stop running or
reverse.
It will be cleared if the
malfunction is removed after
the unit has been turned off.
E4
Comp Discharge temp
protection
z The resistance of temperature
sensor is not correct.
z The electric expansion valve is
blocked.
z The system has leaked.
z Mainboard of outdoor unit is
damaged.
It will be cleared if the
discharge temp is lower than
92 ℃.
C5
Indoor capacity switch
error
De-energize the unit and then,
energize it again. If the
malfunction is removed, the
code will be cleared.
E6
Communication
malfunction（between
outdoor and indoor
mainboard）
z The communication line of the
unit is not connected.
z The communication line is not
through.
z The communication line of the
unit is not connected correctly.
z The two ends o
f
communication line are not
mounted with magnetic ring.
z 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）
z The communication line of the
unit is not connected.
z The communication line is not
through.
z The communication line of the
unit is not connected correctly.
z The two ends o
f
It will be cleared once
communication recovers or it
will be shown all the time