Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 278

Error
Error definition and error
Error source
Code
7111 Indoor unit Remote controller sen-
OA processing sor failure
unit
This error occurs when
the temperature data is
not sent although the re-
mote controller sensor is
specified.
7113 Outdoor unit Model setting error
(short detection)
7117 Outdoor unit Model setting error
(Open detection)
7130 Outdoor unit Incompatible units
The check code will ap-
pear when the indoor
units with different refrig-
erant systems are con-
nected.
detection method
The remote controller without
the temperature sensor (the
wireless remote controller or
the M-NET compact remote
controller (mounted type)) is
used and the remote controller
sensor for the indoor unit is
specified. (SW1-1 is ON.)
Short-circuit
Faulty wiring or contact failure
Disconnected connector, dis-
connected wire, or contact fail-
ure
The indoor unit that uses only
R22 refrigerant is connect-
ed.The wrong unit model is
connected.
When connecting Mr. SLIM (A
control) with M-NET, the con-
necting adapter for M-NET
must be connected to the in-
door unit.
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Cause Check method and remedy
Replace the remote controller with
the one with built-in temperature
sensor.
Check all main board connectors
and rectify faulty connection.
Check for the contact of the connec-
tor CNTYP1, 4, 5 on the main board.
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.)
[ IX Troubleshooting ]