Error Code [2512] (Control Valve Failure) (Indoor Unit); Error Code [2512] (Control Valve Failure) (Hbc) - Mitsubishi Electric PURY-M200YNW-A1 Service Handbook

[7-4 Error Code Definitions and Solutions: Codes [2000 - 2999] ]
7-4-7

Error Code [2512] (Control valve failure) (Indoor unit)

1. Error code definition
Flow control valve fault (indoor unit)
2. Error definition and error detection method
Limit signal that is output from flow control valve is not detected or is not reset after it is detected.
3. Cause, check method and remedy
(1) Loose connectors, wiring fault
(2) Flow control valve fault
(3) Control board fault
7-4-8

Error Code [2512] (Control valve failure) (HBC)

1. Error code definition
Valve block fault (HBC)
2. Error definition and error detection method
Limit signal that is output from valve block is not detected or is not reset after it is detected.
Detail code 01: VB3a-VB3h
Detail code 02: VB3i-VB3p
Detail code 100: MV1
3. Cause, check method and remedy
(1) Loose connectors, wiring fault
(2) Valve block fault
(3) Control board failure/VB board failure
*1. VB board 1: The VB board connected to VB3a-VB3h. The one on the right when facing the control box.
*2. VB board 2: The VB board connected to VB3i-VB3p. The one on the left when facing the control box.
BS_07_M
Cause
Cause
Check method and remedy
Check that the flow control valve wiring is properly connect-
ed to CN8A, and check the connectors for loose contact. If
these are not the cause of the problem, replace the flow
control valve.
If no problems are found with the above items, replace the
control board.
Check method and remedy
When the LEDs on the control board (LD501) or VB board
(LDV01-LDV08) are lit, check the valve block whose LED is
lit for loose connectors, wiring fault, and proper operation.
When the LEDs described above are not lit, check all the
valve block for proper operation.
If the above items check out OK, replace the following
boards.
Detail code 01: Replace VB board 1.
Detail code 02: Replace VB board 2.
Detail code 100: Replace the control board.
*1
*2
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