Lg Refrigerator LFC22740ST Fridge too cold

Fridge freezing food or not cooling? This temperature sensor monitors internal temps and signals the control board. Fixes ER FF errors. Easy install.

This Main PCB Power Control Board Assembly manages the appliance's electronic control and power distribution so cycles run as programmed and functions respond to user commands. Replacing a faulty board restores proper control operation. What it does:

• Regulates power to motors, valves, sensors and user interface circuitry
• Interprets control inputs and runs timed cycles and functions
• Helps prevent erratic behavior caused by failed board components
• Common symptom link: unit won't start, touchpad unresponsive, random resets or error codes indicating control faults

• Disconnect power before accessing electrical components to avoid shock
• Ground yourself and handle the PCB by edges to reduce static risk
• Inspect connectors and harnesses for damage; seat plugs fully during reassembly