The Diode Assembly is an OEM part for GE microwaves. It plays a crucial role in converting alternating current (AC) to direct current (DC), which is essential for the microwave’s high-voltage functions, including powering the magnetron to generate microwave energy. Over time, diodes can fail due to electrical surges, excessive heat, or wear and tear. A faulty diode assembly can lead to inefficient or non-functional microwave operation, impacting its ability to heat food properly. Symptoms of a bad diode assembly include: Microwave not heating food Sparking or arcing inside the microwave Burning smell or unusual noises during operation Microwave turning on but failing to generate heat This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.WB27X10037 (AP2025948) replaces WB27X10330, 769835, AH239148, EA239148, PS239148, WB18X10286.