General Electric Transformer

This H.V. transformer supplies the high voltage needed to drive the magnetron in microwave ovens so food heats properly. Replacing a failed transformer restores the high-voltage supply that powers microwave output. What it does:

• Converts incoming low-voltage power to the high-voltage required by the magnetron
• Enables normal heating; a bad transformer can cause no-heat or weak-heat symptoms
• Can produce humming, burning smells, arcing, or tripped fuses when failing
• Works with the high-voltage diode and capacitor as part of the HV circuit

• One H.V. transformer

• Disconnect power and verify the appliance is unplugged before starting
• Discharge the high-voltage capacitor fully to prevent shock; use insulated tools
• Handle the transformer carefully — it is heavy and mounted with screws/brackets

The Transformer is an OEM component specifically designed for GE microwaves. It acts as the essential electrical converter that receives normal household current and steps it up into the precisely controlled high voltage needed to power the magnetron tube. During use, the transformer transmits regulated H.V. output to ignite the magnetron and generate safe microwave energy for cooking.

Causes of a bad transformer include wear from long-term heat cycling strains and potential pinhole leaks developing over many years of service. 

Symptoms of a bad transformer include:

• Magnetron failing to ignite or running intermittently
• Portions of foods not heating thoroughly on lower power levels  
• Electrical buzzing or burning smells detected
• Microwave slowly losing full power ability over time

This OEM GE replacement is compatible with Hotpoint, RCA and select Kenmore microwave models as well.

This replacement transformer supplies the correct voltage for an appliance's control circuits so electronic controls and low-voltage components receive stable power. Installs in place of a failed or damaged transformer to restore reliable control operation. What it does:

• Converts incoming mains power to the lower voltage used by control boards and low-voltage components
• Restores power to electronic controls and displays when a failed transformer prevents operation
• Helps resolve symptoms like dead control panels, no display, or intermittent control function
• Provides a direct, plug-in replacement for the corresponding OEM transformer

• Disconnect power to the appliance before starting any repair to avoid electric shock
• Label or photograph wire connections before removal to ensure correct reassembly
• Mount securely and reconnect wires exactly as original; use appropriate wire connectors