GREE ELECTRIC GUHD09NK3CO Service Manual page 106

U-Match Series DC
Inverter Service Manual
Table2.Cassette Type Indoor Unit's Error Indicating
LED
yellow: Timing indicating lamp
green:Compressor indicating lamp
red:Running indicating lamp
Floor Ceiling Type LED board
Note:
If the foor ceiling type unit has LED board,then no wired remote controller.
There is one red LED ,one green LED ,one yellow LED,two nixie lights on the LED board.
a. RED LED
It is on when power is on.
It is off when power is off.
b. GREEN LED
It is on during running of cool mode.
It is off when the unit is not at cool mode.
c. YELLOW LED
It is on during running of heat mode.
It is off when the unit is not at heat mode.
d. Nixie Lights
When there is no error,it will display the temp setup for 5s,then display the temp of indoor.
When the unit has error,it will display error code,
Its error code as the same as Table 1 Fault Display on Indoor Wired Controller.
103
Flash times every
two seconds
No error
It goes on as per the
three times
when the temperature
sensor error occurs
four times
three times
It goes on/off as the
compressor is turned
four times
when defrosting
or the compressor
error occurs
six times
It goes on/off as the
unit is turned on/
three times
when the indoor
unit error occurs
four times
Error description
once the indoor ambient temperature sensor error
twice the evaporator temperature sensor error
the condenser temperature senor error
the outdoor ambient temperature senor error
the discharge air temperature sensor error
twice Defrosting
high pressure protection
the low pressure protection
Overload protection
Discharge high temperature protection
once Communication error
twice
the anti-freezing error
Anti-high temperature protection