Error code

Mitsubishi Electric klima code 4109

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Meaning

For motor abnormality: If the supplemental relay Z3 has not been energized for a certain length of time, the unit will make an error stop, and the fan output will be off.

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Possible causes

(1) Over-current breaker trip (2) Blown fuse (F1) (3) Supplemental relay (Z3) abnormality (4) Breaking of wire (5) Disconnected connector (6) Problems with indoor unit controller (I.B1, I.B2)

Solution

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