Mitsubishi Electric City Multi CMH-WM250V-A, Service Handbook

Page: 252 / 436

[7-9 Error Code Definitions and Solutions: Codes [7000 - 7999] ]
BS_07_E chapter 7 -
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7-9-9 Error Code [7117]
1. Error code definition
Model setting error
2. Error source, cause, check method and remedy
Error source Cause Check method and remedy
Outdoor unit (1) Wiring fault (Detail code 15)
(2) Loose connectors, short-circuit, con-
tact failure
1) Check the connector CNTYP5 on the control board for
proper connection.
(Detail code 14)
1) Check the connector CNTYP4 on the control board for
proper connection.
(Detail code 12)
1) Check the connector CNTYP2 on the control board for
proper connection.
2) Check the connector CNTYP5 on the control board for
proper connection.
(Detail code 16)
1) Check the connector CNTYP on the INV board for
proper connection.
2) Check the connector CNTYP5 on the control board for
proper connection.
3) Check the wiring between the control board and INV
board.
Refer to the following page(s). [7-2-1 Error Code
[0403]]
(Detail code 0, 1, 5, 6)
1) Check the wiring between the control board and INV
board.
Refer to the following page(s). [7-2-1 Error Code
[0403]]
2) Check the settings of SW5-3 through SW5-6 on the
control board.
3) Check the connector CNTYP5 on the control board for
proper connection.
(Detail code Miscellaneous)
*If a set-model-name identification error occurs, check
the detail code on the unit on which the error occurred.
The detail code that appears on other units will be dif-
ferent from the ones shown above.
Hydro unit Loose connectors, short-circuit, con-
tact failure
Check the connector CN403 on the control board for
proper connection.
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