LG Refrigerator defrost sensor assembly 6615JB2005C, Replaces 6615JB2005A, 6615JB2005V

Genuine LG defrost sensor assembly/defrost temperature sensor. It monitors evaporator-coil temperature during the defrost cycle; the assembly may include the sensor, fuse, and wire harness.

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✅ Cross Reference Information

Common Symptoms

• Frost or ice buildup on the evaporator coil
• Refrigerator or freezer section too warm
• Freezer not defrosting properly
• Airflow restriction caused by accumulated frost
• Defrost cycle not terminating correctly

Check Before Replacing

• Disconnect refrigerator power before accessing the assembly.
• Visually inspect the evaporator area and sensor harness for frost, physical damage, or loose connectors.
• With the assembly disconnected and using the appliance service documentation, check sensor resistance at a known temperature; compare the reading with the specified temperature-resistance values.
• Check the assembly fuse for continuity with power disconnected; an open fuse indicates a fault in the assembly, but does not by itself establish the root cause of the defrost problem.
• Confirm that the connector and wiring match the appliance wiring diagram before replacing the part.

Pro Tip

Part Details

Key Features

• Genuine LG refrigerator defrost sensor/thermostat assembly
• Senses evaporator temperature during defrost
• Helps prevent excessive evaporator temperature by controlling defrost termination
• May include the sensor, thermal fuse, and wire harness
• Archived replacement relationship: LG 6615JB2005U

Installation Notes

• Disconnect electrical power before servicing the refrigerator.
• Access commonly requires removal of freezer components and the evaporator cover; the exact access procedure varies by model.
• Disconnect the wiring connector carefully and preserve the original wire routing and sensor placement.
• Install the replacement assembly in the same position and reconnect it securely before reinstalling removed panels and components.
• Follow the model-specific service manual because appliance construction and connector arrangements vary.

Verified Compatible Models

LRBC22544SB, LFC23760SW, GMB228JQCA, LRBC22544ST, LRBC22544WW, LRBN20512WW, LRBN22514SB, LRBN22514ST, LRBN22514WW, LRDC22743SW, LRDC22744ST, LRDC22744SW, LRDC22744TT, LRDN22730ST, LRDN22734TT, LRFC22750TT, LRTP1231W, LRBC20512TT, LFC23760SB, LFC20740ST, LFC20740SW, LFX23961ST, LRBC22522ST, GM818DSC, LRFC22750ST, LFD22860TT, LRFC22750SW, LRDC22743TT, GM818DTC, LFC20760SB, GM819DTC, LRDN22734SB, GM819DSW, GMF228JQKA, LFC20760ST, GM818DVC, GM819DVC, LFC20760SW, LRDN22734ST, LRBP1031T, LRBP1031W, LDN22735SB, LRFD22850ST, LRFD22850SW, LDN22735ST, GR349SQF, LDN22735SW, GMB228JTAA, LRFD22850TT, GMB208JSAH, LBC22518ST, LRDN22734WW, GMB208JSCA, GMB228JTCA, LRBN20512SW, LRBC22522WW, LFX23961SB, GR349STQ, LFX23961SW, LRBN22510BQ, GMF228JVTA, LDC22720ST, LBC22518WW, LDC22720SW, GML238SQXH, GML238SVXH, GM818DSCA, GM818DVWA, LDC22720TT, LFC23760ST, GM818FSCA, LRDN20724ST, LRDN22725SW, LRDN20724TT, LRBC20512SW, GM819DSCD, GM819FSCA, GM738DTFA, GM818DSFA, GM738DBC, GM818FSFH, GM739DBC, GMB238JSAH, LRDN20724WW, LRDN22720WW, GM739DTFD, GM819DSFD, GM819FSFA, GM819FSFH, LRBC20512WW, LBN22515SB, LRBN20510BQ, LRBN20520BQ, LBN22515ST, GM818DTCA, GMF228JSKA, LRDN20724SB, LRDN22711SW, LRDN22711TT, LRDN22712SW, LRDN22712ST, LRDN20725TT, LRDN20725SW, LRDN22725TT, LRDN22725ST, LRDN22720BQ

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.