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Error code reference

LG Refrigerator Error Code R-1013

Pantry Damper Heater Error

LG codesLG refrigerator codes

Pantry Damper Heater Error - damper heater detected as open error due to harness slipped out, contact error, or wire cut.

First step from the service manual

Separate MAIN PCB CN91 from PCB, check continuity between Black and Brown wires; resistance should be within 145 ohm ±7%.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What R-1013 means on a LG refrigerator

The R-1013 error code on an LG refrigerator indicates a Pantry Damper Heater Error, specifically an open circuit condition detected in the damper heater circuit. The pantry damper controls airflow into the pantry or fresh food compartment, and the heater associated with it prevents ice buildup on the damper assembly during normal operation. When the refrigerator's main PCB detects that the heater circuit is open (meaning electrical continuity is broken), it logs this fault and triggers the R-1013 code.

The three primary causes identified for this open circuit condition are a harness connector that has slipped out of its terminal, a contact error at one of the connector pins, or a physically cut or damaged wire in the heater circuit. The circuit is monitored through connector CN91 on the main PCB, with the heater element connected via the Black and Brown wires in that harness. The specified resistance for a properly functioning damper heater is 145 ohms, with an acceptable tolerance of plus or minus 7 percent, which means readings between approximately 134.9 ohms and 155.2 ohms are considered within spec.

Diagnosis begins by disconnecting the CN91 connector from the main PCB and measuring continuity and resistance directly between the Black and Brown wires using a multimeter. A reading outside the specified range, or no continuity at all, confirms either a failed heater element or a wiring fault. If resistance is within spec, the issue shifts toward the connector contact itself or the PCB circuit. Inspecting the connector body, terminals, and wire routing along the harness path is critical before condemning any individual component.

Source: manufacturer service documentation.

Common causes of R-1013

  1. 01

    Disconnected harness connector at CN91

    Wiring / connection

    The wiring harness connector at the main PCB CN91 port may have slipped out of its socket, breaking the circuit to the damper heater. Visually inspect the connector and reseat it firmly to restore contact.

  2. 02

    Connector pin contact error

    Wiring / connection

    Individual terminals inside the CN91 connector or the mating connector on the heater harness may have backed out, corroded, or lost tension. Inspecting and re-crimping or replacing affected terminals can resolve this without replacing the full wiring harness.

  3. 03

    Cut or damaged wire in the heater harness

    Part replacement

    Physical damage to the Black or Brown wire in the damper heater circuit, such as a pinch point, rodent damage, or a sharp edge abrasion, can sever the circuit. Carefully trace the harness from CN91 to the damper assembly looking for visible wire damage.

  4. 04

    Failed pantry damper heater element

    Part replacement

    The heater element itself may have burned open internally. If the harness and connectors check out visually, measure resistance between the Black and Brown wires at the disconnected CN91 connector. A reading outside 145 ohms plus or minus 7 percent, or no continuity, points to a failed heater element requiring replacement.

  5. 05

    Main PCB fault at CN91 circuit

    Part replacement

    If the wiring harness and damper heater both test within spec, the CN91 sensing circuit on the main PCB itself may be faulty. This is the least likely cause and should only be considered after all wiring and component checks have been completed.

See the test procedure for each cause

Frequently asked questions about R-1013

What does R-1013 mean on a LG refrigerator?
R-1013 on an LG refrigerator indicates a Pantry Damper Heater Error caused by an open circuit in the damper heater system. The refrigerator's main PCB has detected that electrical continuity to the pantry damper heater is broken. This is typically traced to a slipped harness connector, a faulty pin contact at the CN91 connector, a cut wire, or a failed heater element.
Can I fix the R-1013 error myself?
In many cases, yes. Start by disconnecting the CN91 connector from the main PCB and checking for continuity between the Black and Brown wires with a multimeter. If the connector was simply loose, reseating it may clear the error. If the wiring or heater element is damaged, those repairs require replacing the affected component and are within the skill level of a confident DIYer with basic electrical knowledge.
Is it safe to keep using my refrigerator while R-1013 is active?
A non-functioning pantry damper heater can lead to ice accumulation around the damper assembly, which may eventually restrict airflow and cause temperature inconsistencies in the pantry compartment. While the refrigerator may continue operating in the short term, leaving the fault unaddressed risks food safety if compartment temperatures become unstable. It is best to diagnose and resolve the issue as soon as possible.
Will resetting my LG refrigerator clear the R-1013 code?
Resetting the refrigerator by unplugging it for a few minutes may temporarily clear the displayed code, but the error will return if the underlying cause has not been corrected. The main PCB continuously monitors the damper heater circuit, so the fault will be redetected as soon as the refrigerator resumes normal operation. A permanent fix requires repairing or replacing the faulty wiring, connector, or heater element.
How much does it cost to repair the R-1013 error on an LG refrigerator?
Repair costs vary depending on the root cause. If only a connector needs to be reseated or a terminal re-crimped, the cost can be minimal, essentially just a service call fee ranging from roughly 75 to 150 dollars. If the damper heater element or wiring harness needs replacement, parts typically range from 30 to 100 dollars, with total repair costs including labor falling between 150 and 300 dollars depending on your location and the technician's rates.

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