Mitsubishi Electric Mr.Slim MSY-GT09VF Operating Instructions Manual page 12

● OPERATING INSTRUCTIONS ●
E
RROR CODE DISPLAY MODE
Error code can be checked on the display of remote
controller while the upper operation indicator lamp
on the indoor unit is blinking.
Follow the procedure below to check the error code.
An example of error code (00)
1
Error code display
• The remote controller is powered OFF.
• Get close to the front of the indoor unit (within 2 m), point the remote
controller at the receiving section of indoor unit, and keep pressing the
CHECK with a fine-tipped object until the display of remote controller
turns off.
• Keep pointing the remote controller at the receiving section of indoor
unit, until the error code (2 digits) appears on the display after the
indoor unit beeps.
2
Error code check
• If "--" appears on the display, it means the remote controller has not
received the signal from the indoor unit. Press any button to cancel the
error code display mode. Get closer to the indoor unit, and try again.
If the remote controller still can not receive it, please turn off the noise
source (fluorescent lamp, TV etc.).
• "00" appears on the display when there is no error.
• When an error code (other than "00") appears on the display, the air
conditioner needs to be inspected and repaired. Stop using the air
conditioner, turn off the breaker and contact your dealer.
Note:
• Any button can cancel the error code display mode of the remote controller.
• Proper error code may not appear if the error code is checked while the opera-
tion indicator lamp is not blinking.
En-11
"- -" appears on the display when the
remote controller cannot receive the
signal from the indoor unit.
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Error code of remote controller
Object Code Abnormal point
00 None (Normal)
Indoor unit E6
Serial signal
E7
Fb Indoor control system
P1 Room temperature thermistor
P2
Indoor coil thermistor
P9
Pb Indoor fan motor
Outdoor unit E8
E9 Indoor/outdoor communication, receiving error
EC
FC Nonvolatile memory data
Fd Different voltage
P8 4-way valve/Pipe temperature
PL Outdoor refrigerant system
U3 Discharge temperature thermistor
Defrost thermistor
Fin temperature thermistor
U4 P.C. board temperature thermistor
Ambient temperature thermistor
Outdoor heat exchanger temperature thermistor
UE Stop valve (Closed valve)
UP Outdoor power system