Samsung RF4287HARS Service Manual

The Samsung RF4287HARS is a 28 cubic foot French Door Refrigerator with external ice and water dispenser, twin cooling plus technology, LED lighting, digital temperature control, and energy star certification. This service manual provides comprehensive information for technicians including disassembly procedures, troubleshooting, parts replacement, and technical specifications. Below are key sections for safety, features, installation, maintenance, and repair procedures.

1. Features at a Glance 2. Installation Requirements 3. Technical Specifications 4. Control Panel Operation 5. Disassembly Procedures 6. Component Replacement 7. Electrical System 8. Refrigeration System 9. Error Codes 10. Parts List 11. Troubleshooting Guide

Features at a Glance

Key components: French door design, external ice/water dispenser, twin cooling system, LED interior lighting, digital temperature controls.

Feature	Description
Capacity	28 cubic feet total storage
Doors	French door design with bottom freezer
Cooling System	Twin Cooling Plus technology
Ice System	External ice and water dispenser
Lighting	LED interior lighting
Controls	Digital temperature control panel
Energy Rating	ENERGY STAR certified
Shelves	Adjustable tempered glass shelves
Freezer	Bottom mount freezer drawer
Finish	Stainless steel exterior

Installation Requirements

Proper installation is critical for optimal performance and safety.

Location: Install on level floor with adequate ventilation space (2" sides, 4" back, 4" top).
Electrical: 115V, 60Hz, 15A dedicated circuit required.
Water Supply: 1/4" copper water line with shut-off valve for ice maker.
Clearance: Ensure door clearance for full opening (minimum 110°).
Leveling: Adjust front leveling legs for proper door alignment.

WARNING! Refrigerator is heavy; use two people for installation. Ensure proper electrical grounding.

Technical Specifications

Model: RF4287HARS
Capacity: 28.0 cu. ft. total (19.5 refrigerator, 8.5 freezer)
Dimensions: 70-1/8" H x 35-5/8" W x 34-3/4" D
Electrical: 115V, 60Hz, 7.5A
Refrigerant: R-600a (Isobutane)
Compressor: Digital Inverter Compressor
Defrost System: Automatic electric defrost
Water Pressure: 20-120 psi required
Weight: 328 lbs
Energy Use: 685 kWh/year

Control Panel Operation

Digital control panel located on refrigerator door front.

Display Functions: Temperature settings, ice maker control, power freeze, power cool, filter reset, door alarm.

Temperature Control: Refrigerator (34°F to 44°F), Freezer (-8°F to 8°F). Ice Maker: On/Off control with ice production indicator. Power Freeze: Rapid freezing for 3 hours. Power Cool: Rapid cooling for 3 hours. Filter Reset: Reset indicator after filter replacement. Door Alarm: Audible alarm if door left open.

Disassembly Procedures

Step-by-step disassembly for service access.

Door Removal: Remove hinge covers, disconnect wiring, lift doors off hinges.
Control Panel: Remove screws from top trim, disconnect harnesses.
Shelves and Drawers: Remove all interior components for access.
Back Panel: Remove rear access panel for compressor compartment.
Dispenser Assembly: Remove front dispenser cover for ice system access.

CAUTION! Disconnect power before disassembly. Handle components carefully to avoid damage.

Component Replacement

Common component replacement procedures.

Compressor Replacement: Recover refrigerant, replace compressor, evacuate system, recharge.
Evaporator Fan: Remove back panel, disconnect wiring, replace fan motor.
Condenser Fan: Access through rear grille, replace fan assembly.
Temperature Sensors: Locate sensor, disconnect, install replacement.
Ice Maker: Remove freezer shelf, disconnect water line and wiring, replace unit.
Water Filter: Twist counterclockwise to remove, install new filter.

Electrical System

Electrical schematic and component testing.

Component	Test Procedure	Specification
Compressor	Check resistance between terminals	See wiring diagram
Fan Motors	Check for 120V at motor terminals	Continuity should exist
Defrost Heater	Check resistance	20-40 ohms typical
Thermistors	Check resistance at various temps	See temp/resistance chart
Main PCB	Check input/output voltages	Refer to schematic

Refrigeration System

Refrigeration circuit components and service procedures.

Compressor: Digital inverter type, variable speed
Condenser: Forced air cooled
Evaporator: Plate type in freezer, finned in refrigerator
Capillary Tube: Metering device
Filter Drier: Replace when system opened
Refrigerant: R-600a (Isobutane) - 2.5 oz

WARNING! R-600a is flammable. Follow proper recovery and charging procedures.

Error Codes

Diagnostic error codes and their meanings.

Error Code	Description	Possible Cause
E 20 / 21	Freezer sensor error	Sensor failure, wiring issue
E 22 / 23	Refrigerator sensor error	Sensor failure, wiring issue
E 30 / 31	Defrost sensor error	Defrost thermistor failure
E 40 / 41	Ice room sensor error	Ice maker sensor failure
E 90	Communication error	Main PCB communication failure
E FF	Factory test mode	Unit in factory test mode

Parts List

Common replacement parts and part numbers.

Compressor Assembly: AA10-0032A
Main PCB: DC31-00001A
Display PCB: DC41-00001A
Evaporator Fan Motor: DA32-00001A
Condenser Fan Motor: DA41-00002A
Ice Maker Assembly: DA97-00001A
Water Filter: HAF-CIN/EXP
Door Gasket: DC61-00001A (Refrigerator)
Thermistor Set: DC47-00001A
Defrost Heater: DA81-00001A

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Not cooling	Compressor, thermostat, refrigerant	Check compressor operation, test thermostat, check refrigerant charge
Excessive frost	Defrost system, door seal	Test defrost heater and thermostat, check door gasket seal
No ice production	Water supply, ice maker, filter	Check water supply valve, test ice maker, replace filter
Water leakage	Drain line, water connections	Clear drain line, check water line connections
Noisy operation	Fans, compressor, installation	Check fan motors, compressor mounts, ensure unit is level
Display not working	Power supply, control board	Check power cord connection, test control board voltages

Reset Procedure: Unplug unit for 5 minutes, then reconnect power.

Service Support: 1-800-SAMSUNG; www.samsung.com/support