Mitsubishi Electric CITY MULTI PUMY-P200YKM3, Руководство по обслуживанию

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OCH791 _56
6600 (A0): Duplex address error
Abnormal points and detection methods
2 or more units with the same address exist.
Causes and checkpoints
• There are 2 units or more with the same address in
their controller among outdoor unit, indoor unit, Fresh
Master, Lossnay or remote controller.
• Noise interference on indoor/outdoor connectors
Diagnosis of failure
Correct the address, and turn the power OFF of
indoor/outdoor unit, Fresh Master or Lossnay
simultaneously for 2 minutes or more, then turn
the power back ON.
Malfunction of sending/receiving circuit on
indoor/outdoor unit is suspected.
There is no abnormality on the AC unit.
It might be caused by an external noise, so
check the transmission line to remove the
factor(s).
Search for a unit with the same address as the
source of abnormality.
Turn the power back ON.
Is there any unit with the same
address?
Does it operate normally?
Yes
No
No
Yes