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Error Code [4116]; Error Code [4121] - Mitsubishi Electric PURY-HP72 Service Handbook

R410a
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[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-7

Error Code [4116]

1. Error code definition
RPM error/Motor error
2. Error definition and error detection method
LOSSNAY
∗The motor keep running even if the power is OFF.
∗The thermal overload relay is ON. (Only for the three-phase model)
Indoor unit
If detected less than 180rpm or more than 2000rpm, the indoor unit will restart and keep running for 3 minutes.If detected
again, the display will appear.
3. Cause, check method and remedy
(1)
Board failure
(2)
Motor malfunction
(3)
Solenoid switch malfunction
7-6-8

Error Code [4121]

1. Error code definition
Function setting error
2. Error source, cause, check method and remedy
Error source
Outdoor unit
(1) Dip switch setting error on the control board
(2) Connector connection error on the control
board
(3) Control board failure
HWE13080
Cause
Cause
- 196 -
Check method and remedy
Replace the board.
Check for the motor and the solenoid switch.
Check method and remedy
Check the SW6-1 setting on the control board
Check that nothing is connected to the connector
CNAF on the control board.
Replace the control board if no problems are
found with the two items above.
GB

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