Mitsubishi Electric PUHY-P200 Service Handbook page 260

[ IX Troubleshooting ]
7101
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)
Indoor unit
Outdoor unit (2)
HWE10040
Cause
The model name (capacity code) set by
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.
The model selection switches (SW5-1 -
5-4) on the outdoor unit are set incor-
rectly.
Model SW5
1 2 3
200 model
OFF ON OFF
250 model
ON ON OFF
300 model
OFF OFF ON
350 model
OFF ON ON
400 model
ON ON ON
450 model
OFF OFF OFF
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).
4
OFF
OFF
OFF
OFF
OFF
ON
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