Error code reference

Daewoo Air Conditioner Error Code E3

Compressor or electrical parts of compressor error - indoor coil temperature does not change by +/-2°C within 5 minutes of compressor start (ON lamp blinks 2 times pattern, 0.5s interval).

SourceDaewoo Split System Air Conditioner - Service Manual (DSB-F240L-R)p. 13, 25

Diagnostic procedure

The full E3 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check voltage between L and Y of terminal block; check connecting wire between indoor and outdoor unit; check relay RL1 on power PCB.

SourceDaewoo Split System Air Conditioner - Service Manual (DSB-F240L-R)p. 13, 25

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

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

Models covered by the manuals that document this code

More models are covered than are listed here.

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