Mitsubishi Electric PUHY-HP144TSHMU-A Service Handbook page 180

[ IX Troubleshooting ]
1. Error Code
7113
Function setting error
2. Error definition and error detection method
Resistor connection error
3. Error source, cause, check method and remedy
Error source
Outdoor unit (1) Wiring failure
(2) Disconnected connector, short cir-
cuit, contact failure
(3) Incompatibility between the control
board and inverter board (Replace-
ment of the circuit board with the
wrong one)
1. Error Code
7117
Model setting error
2. Error source, cause, check method and remedy
Error source
Outdoor unit (1) Wiring failure
(2) Disconnected connector, short circuit, contact
failure
1. Error Code
7130
Incompatible unit combination
2. Error definition and error detection method
The check code will appear when the indoor units with different refrigerant systems are connected.
3. Error source, cause, check method and remedy
Error source
Outdoor unit The connected indoor unit is for use with R22
or R407C. Incorrect type of indoor units are
connected.
The M-NET connection adapter is connected
to the indoor unit system in a system in which
the Slim Model (A control) of units are con-
nected to the M-NET.
HWE0716A
Cause
1)
2)
3)
Cause
Cause
- 171 -
Check method and remedy
Control board connector
Check the CNTYP4,5 connector connection.
Inverter board connector
Check the CNTYP connector connection
Check the compatibility of the circuit board, and replace
it with a correct one if necessary.
Check the model selection switch on the outdoor unit
(Dipswitch SW5-7 on the control board.).
Check method and remedy
1) Control board connector
Check the CNTYP4,5 connector connection.
Inverter board connection
Check the CNTYP connector connection
Check method and remedy
Check the connected indoor unit model.
Check whether the connecting adapter for
M-NET is not connected to the indoor unit.
(Connect the connecting adapter for M-NET
to the outdoor unit.)
GB