Mitsubishi Heavy Industries FDUM90KXE6 User Manual

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331
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Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
E2
-
Duplicated indoor unit address
Keeps flashing Keeps flashing
Keeps flashing
Stays Off
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Is the number of
connected indoor units up
to 128 units?
Is a different
address No. assigned to each
indoor unit?
Is E2 displayed?
Reset the power supply and restart.
Caution:
Unless the power
supply is reset,
addresses will not
be confirmed.
YES
NO
YES
NO
YES
NO
Review number of
connected units.
Correct indoor unit address
setting.
Implement test run.
Replace indoor control
PCB. *
* Before replacement,
please confirm whether
the rotary switch for
address setting is not
damaged. (It was
experienced that No. 5
on rotary switch was not
recognized.)
2. Error detection method
More than 129 indoor units are
connected in the same superlink
system.
Duplicated indoor unit address
3 . Condition of error displayed
Same as above
4. Presumable cause
➀ Number of connected indoor
units exceeds the limitation.
➁ Duplicated indoor unit
address
➂ Defective indoor control PCB
Note:

Mitsubishi Heavy Industries FDUM90KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDUM90KXE6
Category	Air Conditioner
Language	English