What Causes E464 on Samsung Inverter ACs?

Defective IPM drive stage or current sensor amplifier circuit on Samsung 8-pin module.

How Our Diagnostic Lab Fixes This Motherboard

Check IPM UVW phase resistance balance. Replace burnt IPM module and replace 15V gate driver Zener diodes.

Oscilloscope Wave Analysis Inspect bus signals and PWM drive gates.

Infrared Rework & Desoldering Safe component replacement with zero track lift.

Full-Load Compressor Rig Test 30-minute burn-in simulation under live load.

90-Day Warranty Seal Insured return courier across 19,000 pin codes.

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Stuck Diagnosing Samsung E464? Send PCB photo or error symptoms directly to our lab engineers on WhatsApp for quick confirmation.

Reported Symptoms: Compressor vibrates heavily upon startup and instantly shuts down with E464 error code.

Technical Cause: Defective IPM drive stage or current sensor amplifier circuit on Samsung 8-pin module.

Check IPM UVW phase resistance balance. Replace burnt IPM module and replace 15V gate driver Zener diodes.

Send your board to our dedicated testing lab via all-India courier pickup for high-voltage bench diagnostics and 90-day replacement warranty.