Parts for Lg USNQ091B4B0: Indoor Unit Parts

Fix temperature sensing issues with this thermistor assembly. Resolves incorrect temperature readings and cycling problems. Direct fit replacement part.

This front grille assembly replaces the damaged or worn trim piece that covers and protects the appliance front while restoring a finished appearance. It helps stop drafts and keeps internal components shielded. What it does

• Covers the appliance front to protect internal components and improve appearance
• Restores proper fit and trim when original grille is cracked, warped, or missing
• Reduces drafts and helps maintain a finished seal around the access area
• Eliminates rattles or noise caused by loose or broken grille tabs

• Disconnect power and follow the appliance safety instructions before starting.
• Typically fastens with clips or a few screws; align tabs and press or secure fasteners until seated.
• Inspect surrounding trim and mounting tabs for damage; replace if needed to ensure a secure fit.

This Main Power Control PCB is the primary electronic control board that manages power delivery and overall appliance functions, restoring control and allowing the appliance to run normal cycles. It replaces a faulty main control to recover responsive operation. What it does:

• Regulates power to motors, valves, sensors, and user controls
• Interprets user input and runs cycle logic for proper operation
• Helps resolve symptoms like unresponsive controls, intermittent power, or failure to start when traced to the main board
• Works with other electronic modules and wiring harnesses to coordinate appliance functions

• One Main Power Control PCB (assembly)

• Recommended: disconnect power (unplug or breaker) before service to avoid shock or damage
• Handle the board by edges and avoid static discharge; use basic ESD precautions
• Verify connectors, wiring harness routing, and mounting before powering the appliance
• If symptoms persist after replacement, check related components (fuses, door switches, wiring)

This is a printed circuit board assembly that controls the front display panel on a window or portable air conditioner. It processes user inputs from the control panel and displays temperature settings, mode selections, and error codes. Replace this board if the display is blank, unresponsive, showing incorrect readings, or if buttons no longer respond to presses.

The Blower Wheel Bearing is an OEM part for LG air conditioners. This bearing supports the blower wheel, ensuring smooth rotation and efficient airflow throughout the unit. 

Causes of a bad blower wheel bearing can include wear and tear from regular use, lack of lubrication, or damage from debris or impact. 

Symptoms of a bad blower wheel bearing include:

• Unusual grinding or squealing noises from the blower area
• Reduced airflow or diminished cooling efficiency
• The blower wheel wobbling or vibrating excessively
• The fan motor struggling to start or run smoothly

This OEM LG part is also compatible with some Kenmore models.