Lg Dryer RC397HM Parts

This Schottky diode is a small board-mounted rectifier that protects and directs current in the appliance's control circuitry. Replacing a failed diode restores proper power flow and helps prevent damage to electronic components. What it does

• Directs current and prevents reverse flow that can damage control electronics
• Helps the control board convert and regulate voltage for sensitive circuits
• Commonly linked to symptoms like intermittent power, control errors, or failure to start
• Often checked when a control board shows visible burn marks or other component failures

• One Schottky diode

• Disconnect power (unplug or shut off breaker) before servicing to avoid shock
• This is a small electronic component; remove the control board to access the diode
• Handle the board and diode with care to avoid static damage and preserve connectors

A switching diode used on the appliance control circuitry to direct current flow and protect electronic components. Replaces a failed diode to restore proper control-board operation and stop unwanted backfeed that can cause intermittent faults. What it does

• Directs current in one direction to support switching functions on the control board
• Prevents reverse current that can cause control or sensor errors
• Helps maintain stable operation of relays, timers, or electronic control circuits
• Commonly replaced when control board functions are intermittent or the appliance will not power certain components

• One switching diode

• Disconnect power to the appliance before servicing to avoid shock or damage
• Observe basic ESD precautions when handling electronic components
• Confirm the diode location and orientation (polarity) before removal and installation

This Zener diode is an electronic voltage-regulation diode used on control boards to protect circuits and stabilize voltages. It replaces a failed diode to help restore proper board operation and prevent damage from voltage spikes. What it does:

• Clamps and stabilizes voltage at a specific setpoint to protect sensitive components
• Protects control electronics from transient voltage spikes and surges
• Helps prevent erratic behavior caused by unstable supply voltages
• Commonly replaced when boards fail to power up or show intermittent faults due to voltage issues

• One Zener diode as shown

• Designed for board-level replacement; handle boards carefully to avoid static damage
• Disconnect power and fully discharge capacitors before attempting repair
• If soldering is required, use proper soldering tools and techniques to avoid heat damage

A replacement Zener diode that stabilizes and clamps voltage on the appliance control board to protect sensitive electronics and help restore proper board operation. Used where a failed diode causes voltage spikes, power faults, or intermittent control issues. What it does:

• Acts as a voltage clamp/regulator to prevent over-voltage on control circuits
• Protects nearby components from transient spikes and surges
• Commonly replaced when boards show power instability, blown fuses, or control errors
• Small, dedicated component used on main control or power supply boards

• Disconnect power and unplug the appliance before starting any repair
• Discharge capacitors on the board to avoid shock or damage
• Requires soldering/desoldering skills and appropriate tools; handle with ESD precautions