Gree GUHD series - Troubleshooting Flowcharts

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86
Trouble
Code
Trouble
Name
Origin of
Trouble Signal
Control Description
FF
All of The
Terminal Air
Valve Colsed
(not failure)
System The air valve on end will be fully closed.
CC
Wire Controller
Invalid
(not failure)
wire controller
the units is remotely monitored or controlled by centralized controller and
the wire controller’s functions are invalidated (not failure)
EE
Keys Locked
(not failure)
wire controller keys on wire controller are locked (not failure)
Table2.Cassette Type Indoor Unit’s Error Indicating
LED No error
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seconds
Error description
yellow: Timing indicating lamp
It goes on as per
the set time, And
LWÀDVKHVZKHQ
the temperature
sensor error occurs
once
the indoor ambient
temperature sensor error
twice the evaporator temperature sensor error
three times the condenser temperature senor error
four times
the outdoor ambient
temperature senor error
¿YHWLPHV
the discharge air temperature
sensor error
green:Compressor
indicating lamp
It goes on/off as
the compressor
is turned on/off.
$QGLWÀDVKHV
when defrosting
or the compressor
error occurs
twice Defrosting
three times high pressure protection
four times the low pressure protection
¿YHWLPHV Overload protection
six times Discharge high temperature protection
red:Running indicating lamp
It goes on/off as the
unit is turned on/
RII$QGLWÀDVKHV
when the indoor
unit error occurs
once Communication error
twice WKHZDWHURYHUÀRZSURWHFWLRQ
three times the anti-freezing error
four times Anti-high temperature protection
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.