Error code

DAIKIN ERQ 011~016 code U7

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Meaning

Indoor Unit: Malfunction of Transmission Outdoor Unit

Member details

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Possible causes

When transmission is not carried out normally for a certain amount of time Improper connection of transmission wiring between outdoor unit and external control adaptor for outdoor unit Improper cool/heat selection Improper cool/heat unified address (outdoor unit, external control adaptor for outdoor unit) Defect of outdoor unit PC board (A1P) Defect of external control adaptor for outdoor unit

Solution

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