Error code
Mitsubishi Electric PUZ code EA
No approved translation for this record yet; showing the original text.
Meaning
Indoor/outdoor unit connector miswiring, excessive number of units (4 units or more) 1. Abnormal if the number cannot be checked automatically due to miswiring of indoor/outdoor unit connecting wire, etc. after power is turned on for 4 minutes. 2. Abnormal if outdoor controller circuit board recognizes the number of connected indoor units as “4 units or more”.
Member details
Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.
View details as a memberPossible causes
(1) Contact failure or miswiring of indoor/outdoor unit connecting wire (2) Diameter or length of indoor/ outdoor unit connecting wire is out of specified capacity. (3) 4 or more indoor units are connected to 1 outdoor unit. (4) Defective transmitting receiving circuit of outdoor controller circuit board (5) Defective transmitting receiving circuit of indoor controller board (6) Defective indoor power board (7) 2 or more outdoor units have refrigerant address “0”. (In case of group control) (8) Noise has entered into power supply or indoor/outdoor unit connecting wire.
Solution
Solution steps are not shared for faults that may be dangerous.
No do-it-yourself solution is given for this fault. For your safety, call an authorised service.
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Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/puz/ea