Error Code List - Mitsubishi Electric PAR-21MAA Technical Manual

2.Error Code List (for Mr.SLIM)
<Display function of inspection for outdoor unit>
The blinking patterns of both LED(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.
[Display]
(1)Normal condition
Unit condition
When the power is turned on
When unit stops
When compressor is warming up
When unit operates
(2)Abnormal condition
Indication
Outdoor controller board
LED1 (Green) LED2 (Red)
Connector(63L) is open.
1 blinking 2 blinking
Connector(63H) is open.
2 connectors are open.
Miswiring of indoor/outdoor unit conne-
2 blinking 1 blinking
cting wire, excessive number of indoor
units (4 units or more)
Miswiring of indoor/outdoor unit co-
nnecting wire (converse wiring or di-
sconnection)
Startup time over
Indoor/outdoor unit communication error
2 blinking
(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.
3 blinking
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.
4 blinking
Error code is not defined.
5 blinking 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.Error code displayed on remote controller.Error codes given in ( ) are not displayed on remote controller.
46
Outdoor controller board
LED1 (Green) LED2 (Red)
Lighted
Lighted Not lighted
Not lighted
Lighted
Lighted
Error
Contents
code
1
F3
F5
F9
(EA)
(Eb)
(EC)
E6
E7
(E8)
(E9)
E0
E3
E4
E5
EF
Ed
A0~A8
Error code
Lighted
00, etc.
08, etc.
Lighted C5, H7 etc.
Error
Inspection method
Check if connector (63L or 63H) on the outdoor controller board is not
disconnected.
Check continuity of pressure switch (63L or 63H) by tester.
Check if indoor/outdoor connecting wire is connected correctly.
Check if 4 or more indoor units are connected to outdoor unit.
Check if noise entered into indoor/outdoor connecting wire or
power supply.
Re-check error by turning off power, and on again.
Check if indoor/outdoor connecting wire is connected correctly.
Check if noise entered into indoor/outdoor connecting wire or power
supply.
Check if noise entered into indoor/outdoor controller board.
Re-check error by turning off power, and on again.
Check if connecting wire of indoor unit or remote controller is
connected correctly.
Check if noise entered into transmission wire of remote controller.
Re-check error by turning off power, and on again.
Check if remote controller is MA remote controller(PAR-21MAA).
Check if noise entered into transmission wire of remote controller.
Check if noise entered into indoor/outdoor connecting wire.
Re-check error by turning off power, and on again.
Check if connector (CN4) on outdoor controller board and outdoor
power board is not disconnected.
Check if there is poor connection of connector on outdoor controller
board(CNMNT and CNVMNT).
Check M-NET communication signal.
A-Control Service Tool
Indication of the display
Alternately blinking display
Operation mode