Gree GMV5E Series Service Manual page 107

GREE
——
Commissioning Code
Progress
Code Display Status Code Display Status
db
db
db
db
db
06_Internal
component
detection for basic
modules db
db
07_Component
detection for IDU
db
db
08_Compressor
preheating
confirmation
db
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
Progress Description for Commissioning Phases
Progress Code
LED1 LED2
On 05
On 05
On 05
On 05
On 06
On 06
On 07
On 07
On 08
On 08
Status Code
LED3
Code Display Status
On C3
On CH
On CL
On OC
Corresponding
On
fault code
On OC
XXXX/
On Corresponding
fault code
On OC
On U0
On OC
103
Meaning
The system detects
communication failure
On
between master unit
and inverter fan driver.
The rated capacity
ratio is over-high
On
between IDUs and
ODUs.
The rated capacity
ratio is over-low
On
between IDUs and
ODUs.
The system completes
detection and
On
automatically enters
the next step.
The system detects
On component failure of
ODU.
The system detects
that no ODU
On component fails and
automatically enters
the next step.
The system detects
component failure of
IDU. "XXXX" indicates
the project number of
the faulty IDU. The
corresponding fault
code is displayed after
On three seconds. For
example, if a d5 fault
occurs on IDU 100,
LED3 will circularly
display "01", "00" (two
seconds later), and
"d5" (two seconds
later).
The system detects
that no IDU
On component fails and
automatically enters
the next step.
The system gives a
prompt if the
On compressor
preheating period is
less than eight hours.
The system detects
that the compressor
preheating period is
On
more than eight hours
and automatically
enters the next step.