LG 6851W1A001V Microwave Oven Diode Cable Assembly

Name: LG 6851W1A001V Microwave Oven Diode Cable Assembly
Brand: LG
SKU: 6851W1A001V

★★★★★5.0 (2 reviews)

Restore your LG microwave's heating performance with this genuine OEM diode cable assembly — the exact part that keeps your appliance safe and functional.

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Overview

The LG 6851W1A001V is a genuine OEM replacement diode cable assembly for select LG microwave oven models. The diode is a critical component in the microwave's high-voltage circuit — it converts alternating current to the direct current the magnetron requires to generate microwave energy. When this part fails, the microwave typically continues to run (the turntable spins, the light works) but produces no heat. Replacing the diode cable assembly is often the most cost-effective repair for this symptom, provided the diagnosis confirms the diode — rather than the capacitor or magnetron — as the failed component. This part directly supersedes OEM number 6851W1A002B.

As a genuine LG part, the 6851W1A001V is manufactured to the original specification — this matters in a high-voltage circuit where aftermarket tolerances can affect both performance and safety. Installation requires safe discharge of the microwave's high-voltage capacitor before handling any internal components; this is not a step to skip, as capacitors in microwave ovens retain dangerous charge even after the appliance is unplugged. For households looking to extend the life of a functional LG microwave rather than replace it, sourcing the correct OEM diode is the right approach — but confirming compatibility against your specific model number in the owner's manual or LG's parts database is essential before ordering.

Key Features

LG Electronics part number 6851W1A001V

Microwave Oven Cable Diode Assembly

This item replaces part number 6851W1A002B

For use of some LG Electronics models

Refer to your manual to ensure ordering the correct, compatible part

Specifications

Part Number

6851W1A001V

Replaces Part Number

6851W1A002B

Part Type

Microwave Oven Diode Cable Assembly

Brand

LG Electronics (OEM)

Compatibility

Select LG Microwave Models (verify via owner's manual)

Pros & Cons

👍 Pros

Genuine LG OEM part ensures the replacement matches the original component's specifications and is designed for the specific high-voltage circuit in compatible models
Direct replacement for part number 6851W1A002B simplifies cross-referencing for technicians and confident DIYers
Restoring a functional microwave with a single replacement part is substantially more cost-effective than purchasing a new appliance
OEM sourcing reduces the risk of fit or durability issues associated with third-party aftermarket alternatives

👎 Cons

Compatibility is limited to select LG microwave models — buyers must verify their model number before purchasing to avoid an incompatible order
High-voltage microwave components require capacitor discharge before safe handling — not a DIY-safe repair for most homeowners without electrical training
This is a single replacement component, not a repair kit — if other high-voltage parts (capacitor, magnetron) have also failed, additional parts will be needed
No compatibility list is published with the product listing — confirming fit requires manual or LG parts database research

Frequently Asked Questions

What does the diode cable assembly actually do in a microwave?

The diode cable assembly is part of the high-voltage circuit that powers the magnetron — the component that generates microwave energy to heat food. A failed diode typically causes the microwave to run without heating, or to blow the internal fuse.

How do I know if this part is compatible with my LG microwave?

Compatibility varies by model. Cross-reference your microwave's model number against LG's parts database or your owner's manual before ordering. This part replaces OEM number 6851W1A002B — if your microwave lists that number, this is the correct replacement.

Can I install this part myself, or does it require a technician?

Microwave high-voltage components carry lethal charge even when unplugged due to capacitor storage. Unless you are trained in appliance repair and know how to safely discharge the capacitor, this repair should be performed by a qualified technician.

Is this a genuine LG part or an aftermarket replacement?

This is listed as a genuine LG Electronics OEM part (part number 6851W1A001V), which means it is manufactured to the same specification as the original component in your microwave.

Will replacing this part fix a microwave that runs but doesn't heat?

A faulty diode is one common cause of a microwave that runs without heating, but it is not the only cause — the magnetron or capacitor may also be at fault. Diagnosis before ordering is recommended to confirm the diode is the failed component.