Lg Microwave HE902SBR1 Parts

This surface-mount chip inductor filters electrical noise on the appliance control board to help maintain stable circuit operation. Replacing a damaged inductor restores proper signal filtering and can prevent interference-related faults. What it does:

• Filters and suppresses electromagnetic interference (EMI) on the control board.
• Helps stabilize current/voltage for nearby circuit components.
• Can prevent erratic control behavior caused by noise or a failed inductor.
• Commonly replaced when the appliance has intermittent electronics, control errors, or won't power on reliably.

• Board-level replacement; requires soldering skills and proper small-part tools.
• Disconnect power and unplug the appliance before starting any repairs.
• Use ESD precautions when handling electronic components and avoid static damage.

This radial-lead inductor filters and smooths electrical current in appliance control circuits to help reduce interference and stabilize performance. It replaces a worn or damaged board-mounted choke to restore reliable operation. What it does:

• Acts as a choke to limit high-frequency noise and interference on control or power lines
• Helps stabilize voltages feeding sensitive electronics on the control board
• Commonly replaced when you see intermittent electronic faults, control errors, or audible buzzing from the control area
• Used where a compact, through-hole (radial-lead) inductor is required for replacement

• Designed for board-mounted installation; soldering skills and proper tools required
• Disconnect power and discharge capacitors before servicing to avoid shock
• Replace like-for-like: match lead spacing and polarity (if marked) to original

A carbon film resistor used on appliance control and power boards to limit current and stabilize circuit operation. Replaces a failed resistor to restore proper electrical behavior and help the appliance operate reliably. What it does:

• Provides a precise resistance element on the control or power circuit to limit current flow
• Helps protect downstream components from voltage/current spikes
• A failed resistor can cause intermittent operation, component failure, or complete loss of the affected circuit
• Visible damage or burning at the resistor is a common sign it needs replacement

• One carbon film resistor

• Disconnect power before attempting any repair to avoid shock or damage
• Replacement may require desoldering the old resistor and soldering the new one; use proper soldering tools and technique
• Observe correct orientation if installed in a network; verify board markings for proper placement

This fixed carbon resistor replaces a worn or damaged resistor on the appliance's control or power circuitry to restore proper circuit resistance and stable operation. It's a small, direct-replacement electrical component for repairs. What it does

• Limits current or drops voltage in a specific circuit to protect components and control operating conditions
• Helps prevent erratic or intermittent operation caused by an open or degraded resistor
• Can be a service fix when symptoms include control errors, loss of specific functions, or components not receiving expected power
• Small, passive component—fails mainly from overheating or electrical stress

• Disconnect power to the appliance before starting any repair to avoid shock or damage
• Observe electrostatic discharge (ESD) precautions when handling electronic components
• Verify part matches the original on the appliance before installing

This carbon-film resistor is a replacement electrical resistor used on appliance control boards to regulate current in a specific circuit, helping restore correct circuit behavior and stable operation. What it does:

• Limits or controls current flow in a control or power circuit to protect and stabilize surrounding components
• Helps maintain proper function of the control board circuitry
• A failed resistor can cause intermittent operation, loss of specific functions, error codes, or the appliance not to operate as intended
• Small, passive component that typically fails open, shorted, or out of tolerance

• Disconnect power before servicing and discharge any capacitors on the board
• Handle PC boards and components with anti-static precautions to avoid ESD damage
• Soldering or desoldering is typically required; use proper tools and technique
• Verify correct part placement and orientation per the service manual or board markings during installation

A single variable resistor used to adjust control settings on the appliance's control board. Replaces a worn or faulty control resistor to restore adjustable resistance for proper circuit operation. What it does:

• Provides adjustable resistance for control-circuit functions such as timing or speed regulation
• Can correct erratic or non-responsive control behavior caused by an open or degraded resistor
• Helps stabilize voltage/current to downstream components when the resistor is within spec
• Commonly used when adjustments or user controls no longer change the appliance behavior

• One variable resistor (single)

• Disconnect power to the appliance before servicing to avoid shock or damage
• Handle the resistor and circuit board carefully; avoid bending leads or applying excess force
• Observe electrostatic discharge (ESD) precautions when touching electronic components

This bipolar transistor is a direct-replacement switching transistor used on control boards to help regulate and switch low-voltage currents. Replacing a failed transistor restores reliable circuit switching for affected appliance functions. What it does

• Acts as a semiconductor switch or amplifier on control electronics to enable or interrupt current flow.
• Commonly used to drive motors, solenoids, relays, or other control circuits on the board.
• Failures may cause no power to a circuit, intermittent operation, or related electronic error codes.
• Works as part of the control board's power-management and signal-routing functions.

• One bipolar transistor.

• Disconnect all power to the appliance before attempting any repair to avoid shock or damage.
• Handle the transistor and circuit board with ESD precautions; avoid touching component leads.
• Soldering/desoldering skills are typically required.

This is a replacement drawing screw used to secure internal appliance parts and restore proper fit. It replaces worn or missing fasteners so panels and components stay aligned and stable. What it does:

• Secures internal panels or components to prevent movement or separation
• Stops rattling or vibration caused by loose or missing hardware
• Helps maintain correct alignment of assembly parts during operation
• Restores the intended fit where the original screw is lost or damaged

• Disconnect power and/or gas before accessing internal components
• Use the matching driver; start threads by hand to avoid cross-threading
• Tighten securely but do not overtighten to avoid stripping or damaging parts
• Replace any damaged mating hardware or seized screws rather than forcing removal