Error code reference

Daewoo Air Conditioner Error Code CODE5

Communication error between indoor unit (I.D.U) and outdoor unit (O.D.U), or 4-way valve / electrical parts of 4-way valve error.

SourceDaewoo Air Conditioner - Service Manual: DMB-1812LH Dual & Split Systemp. 33, 42

Daewoo codes Daewoo air conditioner codes

Diagnostic procedure

The full CODE5 procedure

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MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check communication wire between I.D.U and O.D.U; check 4-way valve and its electrical parts; check for leakage.

SourceDaewoo Air Conditioner - Service Manual: DMB-1812LH Dual & Split Systemp. 33, 42

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

2 manuals in the MyPros+ library document this code for Daewoo air conditioner.

Models covered by the manuals that document this code

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The full CODE5 procedure

Where this code is documented

Models covered by the manuals that document this code

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