Parts for Ge ZGU375NSD3SS: 04 - Cooktop Box Components Parts

If burners won't light or igniters click continuously after lighting, the spark module may have failed. Moderate DIY repair requires removing cooktop.

This high-voltage transformer steps line voltage up to power the magnetron, producing microwave energy. Replacing a failed transformer can restore heating when the oven runs but doesn't heat or hums without cooking.

• Supplies the high voltage the magnetron needs to generate microwave energy
• Failure may present as the microwave running but not heating
• May cause a loud hum or buzz with no heat
• Can blow an internal fuse or trip a breaker immediately after pressing Start

• Disconnect power before service; the high-voltage capacitor can retain a dangerous charge even when unplugged
• Support the heavy transformer during removal/installation and reuse original mounting hardware and wire positions
• After installation, verify secure connections in the high-voltage circuit (capacitor and diode) before testing

If your gas burner won't light or keeps clicking after ignition, the igniter switch may be faulty. This switch closes when you turn the knob to spark.