Error code reference

Samsung Air Conditioner Error Code E258

Fixed scroll compressor 3 discharge temperature sensor error (Open/Short) - error level over 4.95V (-30C) or below 0.5V (151C).

SourceSamsung Air Conditioner - Service Manual: PCB Setup & Troubleshooting (ND022LHXEA)p. 4-26, 4-70

Diagnostic procedure

The full E258 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 the connection of fixed scroll compressor 3 discharge temperature sensor circuit; check for wire breaking.

SourceSamsung Air Conditioner - Service Manual: PCB Setup & Troubleshooting (ND022LHXEA)p. 4-26, 4-70

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock E258 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

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

Models covered by the manuals that document this code

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