Mitsubishi Electric PUHY-P1000, Service Handbook

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[7-9 Error Code Definitions and Solutions: Codes [7000 - 7999] ]
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HWE14040 GB
7-9 Error Code Definitions and Solutions: Codes [7000 - 7999]
7-9-1 Error Code [7100]
1. Error code definition
Total capacity error
2. Error definition and error detection method
The model total of indoor units in the system with one outdoor unit exceeds limitations.
3. Error source, cause, check method and remedy,
Error source Cause Check method and remedy
Outdoor unit (1) The model total of indoor units in the system with
one outdoor unit exceeds the following table. 1) Check the Qj total (capacity code total) of in-
door units connected.
2) Check the Qj setting (capacity code) of the
connected indoor unit set by the switch (SW2
on indoor unit board).
When the model name set by the switch is dif-
ferent from that of the unit connected, turn off
the power source of the outdoor and the indoor
units, and change the setting of the Qj (capac-
ity code).
3) Indoor unit Qj table
(2) The model selection switches (SW5-3 - 5-8) on
the outdoor unit are set incorrectly. Check the setting for the model selection
switch on the outdoor unit (Dipswitches SW5-
3 - 5-8 on the outdoor unit control board).
(3) The outdoor unit and the auxiliary unit (OS) that
is connected to the same system are not proper-
ly connected. Confirm that the TB3 on the OC and OS are
properly connected.
Qj Total Model
200 model
250 model
300 model
350 model
400 model
450 model
500 model
550 model
600 model
650 model
700 model
750 model
800 model
850 model
900 model
950 model
1000 model
1050 model
1100 model
1150 model
1200 model
1250 model
1300 model
1350 model
53
69
86
96
108
121
138
155
172
177
190
207
224
241
248
254
270
284
296
312
324
338
351
365
15
20
25
32
40
50
63
71
80
100
125
140
200
250
3
4
5
6
8
10
13
14
16
20
25
28
40
50
Model
Qj
P200 model
P250 model
P300 model
P350 model
P400 model
P450 model
P500 model
Model
SW5
OFF ON OFF OFF
ON ON OFF OFF
OFF OFF ON OFF
OFF ON ON OFF
ON ON ON OFF
OFF OFF OFF ON
3 4 5 6
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
ON OFF OFF ON
ON OFF
7 8