All Daewoo error codes

Daewoo Air Conditioner Error Codes

46 error codes for Daewoo air conditioner models. Each links to the full diagnostic procedure from the service manual.

CodeDescription

0 blinks (continuous ON blink)Room sensor open or short 1Room air thermistor or connector fault (open/short circuit in room temperature…1 blinkIndoor coil sensor open or short, OR outdoor coil sensor open or short, OR…1 blink (0.5s cycle)Outdoor coil sensor open or short circuit; unit continues working.1 blink (0.5s interval, 8s cycle)Indoor coil sensor open or short circuit; unit does not work.1 blink (8s cycle)Room sensor open or short circuit; unit continues working with fixed room…1 blink (8s interval)Indoor coil sensor open or short, or outdoor coil sensor open or short; unit…1 blink (8s)Indoor coil sensor open or short circuit; unit does not work.1 blink (ON lamp, 0.5s pattern)Indoor coil sensor open or short, OR outdoor coil sensor open or short; unit…1 blink (ON lamp, 8s pattern)Room sensor open or short circuit; unit continues working with room temperature…1 blink (ON lamp)Room sensor open or short circuit 1 times blinkRoom sensor open or short circuit; unit continues working with fixed room…2Indoor coil thermistor or connector fault (open/short circuit in evaporator…2 blinkCompressor or electrical parts of compressor error, OR gas leak.2 blinksIndoor coil sensor open or short, OR outdoor coil sensor open or short, OR…2 blinks (0.5s interval, 8s cycle)Outdoor coil sensor open or short, compressor or electrical parts of compressor…2 blinks (0.5s interval)Compressor or electrical parts of compressor error, or gas leak; unit continues…2 blinks (ON lamp, 0.5s pattern)Outdoor coil sensor open or short, compressor or electrical parts of compressor…2 blinks (ON lamp)Compressor or electrical parts of compressor error, or gas leak; unit continues…2 times blinkIndoor coil sensor open or short, outdoor coil sensor open or short, compressor…

MyPros+ Max

Get the full diagnostic procedure for any Daewoo air conditioner error code.

Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts
Verified part numbers when replacement is required

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M+

M+ Max·Daewoo Air Conditioner

0 blinks (continuous ON blink) on my Daewoo Air Conditioner

M+

Room sensor open or short — unit continuously

From Service Manual 464542, p.34:

1.Check room sensor for open or short circuit. Open: Micom input voltage 0~0.3V, Short: Micom input voltage 4.7~5.0V.

2.Measure line voltage at the power cord terminal block. Expected: 120 VAC (L1 to neutral) or 208 to 240 VAC between L1 and L2 under load.

3.Inspect the cord strain relief and terminal block screws for signs of arcing or heat discoloration. Loose connections here mimic an intermittent power failure to the control board.

Part W10911048

Power cord assembly

3Compressor, electrical parts of compressor, or gas leak error 4Indoor fan motor, motor connector, or PCB fault.CODE1Room sensor open or short circuit CODE2Indoor coil (I/D) sensor open or short circuit CODE3Outdoor (O/D) sensor open or short circuit CODE4Compressor or electrical parts of compressor error CODE5Communication error between indoor unit (I.D.U) and outdoor unit (O.D.U), or…CODE64-way valve or electrical parts of 4-way valve error CODE7Operation mode is different between the two indoor units.continuous blinkUnit does not work due to indoor coil sensor open/short, outdoor coil sensor…continuous ON blinkRoom sensor open or short Continuous ON lamp blinkRoom sensor open or short circuit; unit continues working with room temperature…E1Room sensor open or short circuit detected (ON lamp blinks continuously for 8…E2Indoor coil sensor or outdoor coil sensor open or short circuit (ON lamp does…E3Compressor or electrical parts of compressor error E4Gas leak detected LED 1 time blinkGas leak detected; unit continuously working.LED 3 times blinkCompressor or electrical parts of compressor error; unit continuously works to…LED 8s blinkRoom sensor open or short circuit, indoor coil sensor open or short, or outdoor…ON LAMP 1 blink (8s interval)Indoor coil sensor open or short, or outdoor coil sensor open or short; unit…ON LAMP 2 blinks (0.5s interval)Compressor or electrical parts of compressor error, or gas leak; unit continues…ON LAMP Blink (0.5s, 2 times blink)Outdoor coil sensor open or short, compressor or electrical parts of compressor…ON LAMP Blink (8s, 1 times blink)Outdoor coil sensor open or short circuit; unit continues working.ON LAMP Blink (continuous)Room sensor open or short circuit; unit continues working with room temperature…ON lamp continuous blinkRoom sensor open or short circuit Room Sensor open/shortRoom temperature sensor is open or shorted; unit continues working with room…

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