Error code

Mitsubishi Electric MXZ code EE

No approved translation for this record yet; showing the original text.

Meaning

Faulty connection of LEV For the connection of P100 indoor unit(s), the connecting wire(s) must be connected to the specified terminal block(s) in the branch box. Incorrect wiring

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Possible causes

(1) Contact failure or miswiring of indoor/outdoor unit connecting wire The connecting wire(s) from P100 indoor unit(s) are not connected to the specified terminal block(s) in the branch box. The connecting wire(s) from P100 indoor unit(s) are connected to an incorrect terminal block(s) in the branch box. (2) Diameter or length of indoor– branch box/branch box–outdoor unit connecting wire is out of specified capacity. (3) Defective transmitting receiving circuit of outdoor/branch box controller circuit board (4) Defective transmitting receiving circuit of branch box/indoor controller board (5) Defective branch box/indoor power board (6) Noise has entered into power supply or indoor–branch box/ branch box–outdoor unit connecting wire.

Solution

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