Error code reference

Samsung Air Conditioner Error Code E170

Mixed use of Fahrenheit/Celsius setup error - occurs in indoor unit with Celsius setup when options are not properly input.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting & PCB Setup (AVXC4H)p. 4-23, 4-43

Diagnostic procedure

The full E170 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
Input Celsius options in the remote controllers for error-free indoor units in Celsius using regions.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting & PCB Setup (AVXC4H)p. 4-23, 4-43

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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