mypros+
Error code reference

Samsung Air Conditioner Error Code P3

Error occurring between outdoor units with mixed-up communication wires, or related to compressor capacity control/refrigerant issues.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting (AVMWH020CA0XAG)p. 6-100, 6-105

Samsung codesSamsung air conditioner codes
Diagnostic procedure

The full P3 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 that communication wires between outdoor and indoor units are not mixed up; operate only one outdoor unit at test operation.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting (AVMWH020CA0XAG)p. 6-100, 6-105

Unlock with pass
Unlock with pass
Unlock with pass
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock P3 procedure $9.95

Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.

Where this code is documented

3 manuals in the MyPros+ library document this code for Samsung air conditioner.

Models covered by the manuals that document this code

Related Samsung air conditioner error codes

All Samsung air conditioner codes

75,000+ service documents · 20,000+ error codes · 100+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax