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Error code reference
Daewoo Microwave Error Code Er03
Humidity sensor error during auto reheating operation - sensor circuit voltage out of expected range.
SourceDaewoo Microwave Oven - Service Manual: KOT-150/151/152/153/154 Seriesp. 51
Diagnostic procedure
The full Er03 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 humidity sensor connection to CN3, verify resistors R6-R10, and check voltage at points A (0.5V-3.5V), B (11.3VDC), C (4.4VDC), D (2.2VDC) after 1-2 minutes of auto reheating operation.
SourceDaewoo Microwave Oven - Service Manual: KOT-150/151/152/153/154 Seriesp. 51
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 microwave.
Models covered by the manuals that document this code
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