A/A DC INVERTER U-MATCH AIR CONDITIONERS MAINTENANCE
102
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
Flash times
every two
seconds
Error description
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
yellow: Timing indicating
lamp
It goes on as per
the set time, And
it flashes when
the temperature
sensor error
occurs
five times
the discharge air temperature
sensor error
twice Defrosting
three times high pressure protection
four times the low pressure protection
five times Overload protection
green：Compressor
indicating lamp
It goes on/off as
the compressor
is turned on/off.
And it flashes
when defrosting
or the
compressor error
occurs
six times Discharge high temperature
protection
once Communication error
twice the water overflow protection
three times the anti-freezing error
red：Running indicating
lamp
It goes on/off as
the unit is turned
on/off, And it
flashes when the
indoor unit error
occurs
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.
① RED LED
It is on when power is on.
It is off when power is off.
②GREEN LED
It is on during running of cool mode.
It is off when the unit is not at cool mode.
③YELLOW LED
It is on during running of heat mode.
It is off when the unit is not at heat mode.
④Nixie Lights
When there is no error,it will display the temp setup for 5s,then display the temp of indoor.
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