4055373890 Genuine Magnetron for Electrolux Group Microwave Ovens, Replacement Microwave Heating Tube

The magnetron is the part that actually makes the heat in a microwave oven, and 4055373890 is a genuine Electrolux magnetron for microwaves in the Electrolux group. It turns high voltage power into the microwave energy that cooks the food. Magnetrons differ in size, mounting and output, and this number has no model list attached, so check your microwave's model and product number before ordering part 4055373890.

Microwave running but not heating

A failed magnetron usually shows up as a microwave that lights up, spins the turntable and hums through the countdown, but leaves the food cold. Some units buzz louder than usual, and you may notice a burning smell or sparking near the waveguide cover. Not every no-heat fault is the magnetron though. The high voltage diode, capacitor, transformer, a thermal fuse or a door switch can all stop the oven heating, so testing comes first. A good technician rules those parts out before replacing the magnetron.

Part details

• Genuine Electrolux part 4055373890
• Magnetron for Electrolux group microwave ovens
• Generates the microwave energy that heats food
• Professional fitting recommended

Leave magnetron replacement to a professional

A microwave's high voltage capacitor can hold a dangerous charge even after the plug has been pulled. Because of that, magnetron testing and replacement should be done by a qualified appliance technician who knows how to discharge the circuit safely. They will also check the door seal and test for leakage once the job is finished. Always unplug the microwave before any panel comes off.

Questions about this part

Is it worth replacing the magnetron or should I buy a new microwave?

That depends on the microwave's age and type. Built-in units cost more to replace, so a repair often makes sense for them. Ask your technician to confirm the magnetron is the fault before ordering, since other high voltage parts cause the same symptom.