Error code reference

Samsung Air Conditioner Error Code E213

Total number of indoor units assigned to MCU/SVB matches installed count but there is an uninstalled indoor unit assigned on MCU/SVB.

SourceSamsung DVM S2 Air Conditioner Outdoor Unit - Service Manual (AM072-AM240HCV)p. 82

Diagnostic procedure

The full E213 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 MCU/SVB port address settings and indoor unit installation.

SourceSamsung DVM S2 Air Conditioner Outdoor Unit - Service Manual (AM072-AM240HCV)p. 82

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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