Parts for Ge PSB9120DF3BB: Control Parts

Control board bracket secures the electronic control board in your microwave. If your control board is loose or rattling, this mounting bracket restores stability.

Fix blinking, dim, or blank microwave display. This display board (digitron) restores clock and control panel visibility. DIY repair in under an hour.

Indicator light for built-in microwaves. Installs on control panel to show active settings. Replace if cracked, burned out, or missing.

Fix a microwave that won't start, stops mid-cycle, or has unresponsive buttons by replacing the main control board. This part restores electronic control.

This control knob restores safe, easy operation of a stove or range control. It replaces a cracked, melted, or missing knob so you can adjust burners or oven settings with a secure grip and clear feel. What it does:

• Fits onto the appliance control shaft to select burner or oven settings
• Replaces damaged, loose, stripped, melted, or missing knobs
• Provides a firm, tactile grip for precise control
• Helps prevent accidental changes by seating securely on the shaft

• Disconnect power (and gas, if applicable) before servicing the appliance
• Remove the old knob by pulling it straight off the control shaft
• Align the knob with the control shaft splines and push firmly until fully seated
• If the knob does not install easily, verify shaft alignment and do not force.

Microwave not powering on or controls unresponsive? This PCB wire connector restores electrical connections between circuit boards. Quick 15-minute fix.

The Relay Board is an OEM part for GE microwaves. It controls the passage of proper voltage levels for various microwave components during operation.

Installed internally, this board transmits power signals to run the magnetron, fan, and lighting systems as directed by the selected cooking settings. Precise switching of voltages is required for consistent and balanced microwave radiation. 

Symptoms of a faulty relay board include:  

• Intermittent or unpredictable power level adjustments
• Magnetron fails to turn on or fluctuates excessively
• Light not illuminating properly  
• Fan speed irregularities
• Microwaves not properly heating foods

Causes can be damage from liquid intrusion, heavy usage over time stressing the relays, or component failures within the board itself.

Replacing with this genuine OEM GE part restores optimized power routing to maintain consistent microwave functions. Compatible models also include some Hotpoint, RCA, and select Kenmore products.
 

A replacement board supporter that secures the appliance control board to the cabinet, helping keep the board stable and positioned away from wiring and chassis. Restores proper mounting to reduce vibration and movement of the control board. What it does:

• Holds and supports the control/PC board to prevent excessive movement or rattling
• Keeps the board spaced from the chassis and wiring to reduce risk of shorting or contact
• Helps maintain stable electrical connections for reliable control operation
• Reduces noise caused by a loose or vibrating control board
• Can prevent further wear on board mounting points and connectors

• Disconnect power to the appliance before beginning any service.
• Handle the control board by its edges and avoid touching components; use ESD precautions if available.
• Remove nearby panels or components as needed for access; retain all fasteners for reassembly.
• If mounting points or fasteners are damaged, inspect nearby parts and replace as required.