Mitsubishi Electric CITY MULTI PUHY-YSMF-B Installationshandbuch Seite 36

3. Remote controller
Check code
6101 Unreadable response receiving error
6600 Duplicated unit address setting
6602 Transmission error (Transmission processor hardware
error)
6603 Transmission error (Transmission route BUSY)
2 Diagnostic switch (SW1) and the service LED on multi-controller board of the variable capacity unit can be used to judge a malfunction
of outdoor unit.
<Operation of self-diagnosis switch (SW1) and the service LED display>
Self-diagnosing
SW1 setting
item
Relay output
display 1
A
(Lighting)
B
1 2 3 4 5 6 7 8 9 10
Check
C
a
display 1
(Blinking)
A
Relay output
B
display 2
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
Check
indoor unit
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
Indoor unit
b
mode
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
Indoor unit
thermostat
A
B
1 2 3 4 5 6 7 8 9 10
A
B
1 2 3 4 5 6 7 8 9 10
A
Indoor unit
B
address
1 2 3 4 5 6 7 8 9 10
a Outdoor unit b Indoor unit
A ON B OFF
36
Abnormality
Display at LED lighting (blinking)
Flag 1 Flag 2 Flag 3
During Compres- Compres-
compres- sor 1 sor 2
sor run operations operations
0000 to 9999 (Alternate display of address and error code)
SV4 21S4b SV5b
No.1 No.2 No.3
unit unit unit
No.9 No.10 No.11
unit unit unit
No.17 No.18 No.19
unit unit unit
No.25 No.26 No.27
unit unit unit
No.1 No.2 No.3
unit unit unit
No.9 No.10 No.11
unit unit unit
No.17 No.18 No.19
unit unit unit
No.25 No.26 No.27
unit unit unit
No.1 No.2 No.3
unit unit unit
No.9 No.10 No.11
unit unit unit
No.17 No.18 No.19
unit unit unit
No.25 No.26 No.27
unit unit unit
Displays in order the addresses (1 through 50) of all indoor units connected to
the outdoor unit.
* Turn SW4-2 of variable capacity unit off. If SW4-2 is on, constant capacity unit data will be
C At factory shipment
displayed.
Check code
6606 Transmission and reception error (Communication trou-
ble with transmission processor)
6607 Transmission and reception error (No ACK error)
6608 Transmission and reception error (No responsive frame
error)
Flag 4 Flag 5 Flag 6 Flag 7
SV22/32
21S4 SV1
SV6 CH2, 3 52F
No.7
No.4 No.5 No.6
unit
unit unit unit
No.12 No.13 No.14 No.15
unit unit unit unit
No.23
No.20 No.21 No.22
unit
unit unit unit
No.28 No.29 No.30 No.31
unit unit unit unit
No.7
No.4 No.5 No.6
unit
unit unit unit
No.12 No.13 No.14 No.15
unit unit unit unit
No.20 No.21 No.22 No.23
unit
unit unit unit
No.28 No.29 No.30 No.31
unit
unit unit unit
No.4 No.5 No.6 No.7
unit
unit unit unit
No.12 No.13 No.14 No.15
unit
unit unit unit
No.20 No.21 No.22 No.23
unit unit unit unit
No.31
No.28 No.29 No.30
unit
unit unit unit
Abnormality
Remarks
Flag 8
Always
lighting
Flag 8 always lights
at microcomputer
power ON
21S4b and SV5b are
closed with flag 1
No.8
unit
No.16
unit
Lights at emergency
stop in IC
Turns off by resetting
No.24
unit
No.32
unit
No.8
unit
No.16
unit
Lights at cooling
Blinks at heating
No.24 Turns off at stop/fan
unit
No.32
unit
No.8
unit
No.16
unit
Lights at thermostat
on
Turns off at thermo-
No.24
stat off
unit
No.32
unit