Gree GMV-400WM/E-X Service Manual

GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
142
Fault
code
Fault
Possible reasons
Solution
Primary reason
Secondary reason
Tertiary reason
Description
Confirmation
method
Description
Confirmation
method
Description
Confirmation
method
is exceptional.
4.2 The
high
pressure
and low
pressure
sensors are
connected
reversely.
Connect the stop
valves of the
module high- and
low-pressure air
pipes to the high
and low pressure
gauges and
transform the
readings into
corresponding
temperatures.
Compare them to
the high- and
low-temperatures
tested by the
system. If the
difference is
larger than 5°C , it
is exceptional.
——
——
Reconnect the high-
and low-pressure
sensors.
6. The fan is
not working
properly.
A. The IDU's
fan does not
work in the
cooling mode.
B. The ODU's
fan does not
work in the
heating mode.
6.1 The
IDU's fan is
faulty.
Manual check
6.1.1 The
power cable
connecting
the motor
and main
board is
loose.
Manual check
Reconnect the motor
with the power cable.
6.1.2 The
electric
capacity is
not
connected
or is
damaged.
Manual check
Connect or replace
the electric capacity.
6.1.3 The
motor is
damaged.
Other
reasons
Replace the motor.
6.2 The
ODU's fan
is faulty.
Manual check
6.2.1 The
fan motor is
not properly
connected
with the
control
board of the
motor.
Manual check
Reconnect it
properly.
6.2.2 The
fan motor is
not properly
connected
with the
control
board of the
motor with
the
communicat
ion
Manual check
Reconnect it
properly.

Gree GMV-400WM/E-X Specifications

General

Brand	Gree
Model	GMV-400WM/E-X
Category	Air Conditioner
Language	English