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Samsung / WindFree Premium

Samsung C464 error code

C464 is Compressor starting error. The unit is stopping or limiting operation because that reading or component cannot be trusted. Manual trigger: C464 means Compressor starting error.

All Codes
Urgency
advisory
Verified
Jul 30, 2026
Fix path
Technician

What it means

C464 is Compressor starting error. The unit is stopping or limiting operation because that reading or component cannot be trusted. Manual trigger: C464 means Compressor starting error.

Urgency

advisory

This is not usually an immediate safety hazard, but do not keep resetting it. Try only the safe homeowner check below; if the same code returns, schedule service.

Likely causes

  1. Temporary protection event that may clear after one reset
  2. Airflow, power, or operating condition outside normal range
  3. Sensor, wiring, or control feedback problem
  4. Technician-only component fault identified by the service manual

Homeowner fix

Turn the system off and reset once if safe. If C464 returns, leave the system off and do not force repeated compressor starts.

When to call a pro

Call a licensed HVAC technician if C464 returns or the outdoor unit will not start. Tell them the Samsung meaning is: Compressor starting error.

This code points to compressor and electrical or inverter work - get repair quotes from contractors in your area.

Get repair quotes

Repair vs replace

Compressor and inverter findings can be expensive. If the system is older or out of warranty, compare a confirmed compressor, inverter, or outdoor-board quote with replacement.

See Samsung mini-splits

Your Samsung model

WindFree Premium model pages in the Samsung catalog help compare this repair path with current replacement options.

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For your technician

Technician note: Compressor starting error. Check compressor terminals, wiring order, winding resistance, insulation, drive output, IPM/inverter, setup data, and outdoor PBA before deciding repair scope. Page context: Samsung maps this display to the WindFree Premium line; source: Samsung WindFree Premium R-32 Service Manual; display convention: match the letter C and four hundred sixty four marker exactly before comparing neighboring codes.

Which systems show it

  • Samsung R-32 residential ductless diagnostics anchored to WindFree Premium and used as common Samsung C-code homeowner guidance for current R-32 residential mini-split coverage.

Related troubleshooting

Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.

Your mini split is showing a refrigerant leak codeMini split indoor unit freezing upMini split weak airflow

Reset note

Power cycle once only if the homeowner fix says it is safe; do not keep resetting a returning code.

Manual trigger

C464 means Compressor starting error.

Related codes

C463 diagnosticsC465 error codeC462 Technician pathC466 Technician pathC471C485

Source

Samsung WindFree Premium R-32 Service Manual
Section
Section 9 troubleshooting index, outdoor error list
Page
Section 9 troubleshooting index

Short quote: "Compressor starting error"

Sourced Jul 2026

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