Total Capacity Error - Mitsubishi MXZ-4C36NAHZ Technical & Service Manual

Check code
7100
(EF)
Abnormal points and detection methods
When the total of the number on connected indoor unit model names
exceeds the specified capacity level (130% of the number on the outdoor
unit model name), a check code <7100> is displayed.
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Check the total number of connected
indoor unit model names.
Is the total under 130% of
the number of outdoor unit model
name?
Yes
Check the capacity code switch (SW2
on the indoor controller board) on the
connected indoor unit.
Is it set properly?
Yes
Check the model selection switch (SW4 on
the outdoor controller board) of the outdoor
unit.
OCH573C

Total capacity error

Diagnosis
Is it set properly?
Yes
Causes and check points
The total of number on connected indoor unit model
names exceeds the specified capacity level:
· 4C36: up to code 29
· 5C42: up to code 35
· 8C48: up to code 40
· 8C60: up to code 59
The model name code of the outdoor unit is
registered wrongly.
Correct the total number of connected
No
indoor unit model name within 130% of the
number on the outdoor unit model name.
No
No
102
Remedy
Set the switch properly.
Set the switch properly.
complete