Mitsubishi PUZ-A18NHA6 - Noise

80
<Display function of inspection for outdoor unit>
TheblinkingpatternsofbothLED1(green)andLED2(red)indicatethetypesofabnormalitywhenitoccurs.Typesof
abnormalitycanbeindicatedindetailsbyconnectinganoptionalpart‘A-ControlServiceTool(PAC-SK52ST)’toconnector
CNMonoutdoorcontrollerboard.
F5
—
—
—
E6
E7
—
—
E0
E3
E4
E5
EF
Ed
A0–A8
[Display]
(1)Normal condition
(2)Abnormal condition
Unit condition
Outdoor controller board A-Control Service Tool
LED1 (Green) LED2 (Red) Check code
When the power is turned on
When unit stops
When compressor is warming up
When unit operates
Lighted Lighted
Lighted
Lighted
Lighted
Not lighted
Indication of the display
Alternately blinking display
Operation mode
Not lighted
Lighted
00, etc.
08, etc.
C5, H7 etc.
Indication Error
Check
code
*1
Outdoor controller board
Contents Inspection method
LED1 (Green) LED2 (Red)
1 blinking 2 blinking
2 blinking 1 blinking
2 blinking
3 blinking
4 blinking
5 blinking
Connector (63H) is open.
Startup time over
Check code is not defined.
Miswiring of indoor/outdoor unit conne-
cting wire, excessive number of indoor
units (4 units or more)
Miswiring of indoor/outdoor unit co-
nnecting wire (converse wiring or di-
sconnection)
Indoor/outdoor unit communication error
(signal receiving error) is detected by in-
door unit.
Indoor/outdoor unit communication error
(transmitting error) is detected by indoor
unit.
Indoor/outdoor unit communication error
(signal receiving error) is detected by
outdoor unit.
Indoor/outdoor unit communication error
(transmitting error) is detected by outdoor
unit.
Remote controller signal receiving
error is detected by remote controller.
Remote controller transmitting error
is detected by remote controller.
Remote controller signal receiving
error is detected by indoor unit.
Remote controller transmitting error
is detected by indoor unit.
Serial communication error
<Communication between outdoor
controller board and outdoor power
board>
<Communication between outdoor
controller board and M-NET P.C. board>
Communication error of M-NET
system
*1 Check code displayed on remote controller
*
2 Refer to the indoor unit service manual.
1
Check if indoor/outdoor connecting wire is connected correctly.
2 Check if 4 or more indoor units are connected to outdoor unit.
3Check if noise entered into indoor/outdoor connecting wire
or power supply.
4Re-check error by turning off power, and on again.
1
Check if connector (63H) on the outdoor controller
board is not disconnected.
2 Check continuity of pressure switch (63H) by tester.
1 Check if connector (CN4) on outdoor controller board and
outdoor power board is not disconnected.
2 Check if there is poor connection of connector on outdoor
controller board(CNMNT and CNVMNT).
3 Check M-NET communication signal.
1Check if remote controller is MA remote controller (PAR-21MAA).
2Check if noise entered into transmission wire of remote controller.
3Check if noise entered into indoor/outdoor connecting wire.
4Re-check error by turning off power, and on again.
1Check if connecting wire of indoor unit or remote controller
is connected correctly.
2Check if noise entered into transmission wire of remote
controller.
3Re-check error by turning off power, and on again.
1
Check if indoor/outdoor connecting wire is connected correctly.
2 Check if noise entered into indoor/outdoor connecting wire or
power supply.
3 Check if noise entered into indoor/outdoor controller board.
4 Re-check error by turning off power, and on again.
P.34
P.34
(EA)
P.34
(Eb)
P.34
(EC)
*2
*2
P.40
(E8)
P.40
(E9)
P.39
P.39
P.39
P.39
P.40
P.40
P.41–
P.44
Detailed
reference
page
OCH577A