Name: Samsung RF28R7201SA
Brand: Samsung

Question 1

What does error code AUTO-FILL-OVF mean on Samsung RF28R7201SA?

Accepted Answer

Water overflowing in auto fill system. Cause: Water supply line blockage causing backup; Overflow sensor malfunction; Float valve stuck.

Question 2

What does error code CF mean on Samsung RF28R7201SA?

Accepted Answer

Condenser fan not operating. Cause: Fan connector loose; Fan motor voltage out of range 7V-12V; Motor failure or rotor locked.

Question 3

What does error code COMP-CONSTRAINT mean on Samsung RF28R7201SA?

Accepted Answer

Compressor cannot turn. Cause: Compressor seized; Liquid slugging; Refrigerant system blockage; Compressor internal failure.

Question 4

What does error code COMP-HIGH-VOLT mean on Samsung RF28R7201SA?

Accepted Answer

Incoming electrical power too high. Cause: High house voltage AC 155V (exceeds AC110-127V limit) or AC 310V (exceeds AC220-240V limit); Power surge or spike; Main PCB solder damage.

Question 5

What does error code COMP-IPM-FAULT mean on Samsung RF28R7201SA?

Accepted Answer

Compressor power module failure. Cause: IPM thermal overload; Short circuit in IPM module; Solder joint failure; Component damage.

Question 6

What does error code COMP-IPM-SHUTDOWN mean on Samsung RF28R7201SA?

Accepted Answer

Compressor power module overheated. Cause: IPM module overheating; Solder joint cracks on inverter; DC 15V output less than 13.5V; Compressor stall or short.

Question 7

What does error code COMP-LOCATION mean on Samsung RF28R7201SA?

Accepted Answer

Compressor position sensor signal lost. Cause: Compressor wiring loose; Compressor resistance measurements wrong; Inverter PCB solder defects; Compressor mechanical failure.

Question 8

What does error code COMP-LOW-VOLT mean on Samsung RF28R7201SA?

Accepted Answer

Incoming electrical power too low. Cause: Low house voltage AC 60V (should be AC110-127V) or AC 106V (should be AC220-240V); Power supply cable problem; Main PCB solder defects.

Question 9

What does error code COMP-START-FAIL mean on Samsung RF28R7201SA?

Accepted Answer

Compressor cannot start. Cause: Compressor terminals shorted; IPM voltage below 13.5V; Inverter PCB solder joints cracked; Compressor locked.

Question 10

What does error code DISP-PANEL mean on Samsung RF28R7201SA?

Accepted Answer

Dispenser display not communicating. Cause: Dispenser cable disconnected or loose; Dispenser panel PCB failure; Corrupted communication.

RF28R7201SA

Error Codes

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Code	Meaning	Severity
AUTO-FILL-OVF	Water overflowing in auto fill system	Moderate
CF	Condenser fan not operating	Critical
COMP-CONSTRAINT	Compressor cannot turn	Critical
COMP-HIGH-VOLT	Incoming electrical power too high	Critical
COMP-IPM-FAULT	Compressor power module failure	Critical
COMP-IPM-SHUTDOWN	Compressor power module overheated	Critical
COMP-LOCATION	Compressor position sensor signal lost	Critical
COMP-LOW-VOLT	Incoming electrical power too low	Critical