Mitsubishi Electric PEFV-P72NMHSU-E Technical & Service Manual page 52

1. Error Code
7101
Capacity code setting error
2. Error definition and error detection method
Connection of incompatible (wrong capacity code) indoor unit or outdoor unit
3. Error source, cause, check method and remedy
Error source
Outdoor unit (1) The model name (capacity code) set by
Indoor unit the switch (SW2) is wrong.
*The capacity of the indoor unit can be
confirmed by the self-diagnosis function
(SW1 operation) of the outdoor unit.
Outdoor unit (2) The model selection switches (SW5-1 -
5-4) on the outdoor unit are set incor-
rectly.
1. Error Code
7111
Remote controller sensor fault
2. Error definition and error detection method
This error occurs when the temperature data is not sent although the remote controller sensor is specified.
3. Error source, cause, check method and remedy
Error source
Indoor unit The remote controller without the temperature
OA process- sensor (the wireless remote controller or the
ing unit ME compact remote controller (mounted
type)) is used and the remote controller sen-
sor for the indoor unit is specified. (SW1-1 is
ON.)
HWE1017B
Cause
SW5
Model
1 2 3 4
72 model
OFF ON OFF OFF
96 model
ON ON OFF OFF
120 model
OFF OFF ON OFF
144 model
OFF ON ON OFF
Cause
- 46 - 46
Check method and remedy
1) Check the model name (capacity code) of the in-
door unit which has the error source address set by
the switch (SW2 on indoor unit board).
When the model name set by the switch is different
from that of the unit connected, turn off the power
source of the outdoor and the indoor units, and
change the setting of the capacity code.
Check the setting for the model selection switch on
the outdoor unit (Dipswitches SW5-1 - 5-4 on the
outdoor unit control board).
Check method and remedy
Replace the remote controller with the one
with built-in temperature sensor.
GB