Free Shipping $49+
Factory Direct No Middleman
30-Day Returns
24/7 1-800-HEIMA-00
Microwave runs, turntable spins, and light comes on, but food remains cold — the magnetron tube has failed and is no longer generating microwave energy.
Food takes significantly longer to heat than normal or heats unevenly across the dish, indicating declining magnetron output power.
Microwave produces its normal operating hum but produces no heat — a classic symptom of a magnetron that has lost emission capability.
Unusual burning odor or discoloration of the interior wave guide cover or deflector guard, often caused by arcing from a failing or contaminated magnetron.
The internal 20A 125V fuse fails repeatedly under load, which can indicate a shorted magnetron drawing excess current from the high-voltage circuit.
💡 Pro Tip: Is Your Magnetron the Problem?
Your part is likely the culprit if you notice any of the following:
⚠️ Microwave runs and hums normally but food stays cold — the magnetron tube has failed
⚠️ Microwave heats very slowly or unevenly compared to before
⚠️ Burning smell or scorched deflector guard inside the cavity
⚠️ Microwave trips the breaker or blows the internal 20A fuse repeatedly under load
⚡ Safety Warning: The high-voltage capacitor in your microwave can hold a lethal charge even after unplugging. Always discharge the capacitor before touching any internal components. When in doubt, have a qualified technician perform this repair.
📦 What's in the Box
✅ 1× Microwave Magnetron Assembly WB26X23320 (includes integrated diode and resistor)
We typically respond within 1 business day. Include your appliance model number for the fastest answer.
Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.
Reviews
There are no reviews yet.