All problems
Each page ranks the probable causes and clearly states when to stop.
Examples: not draining E15 leak not heating
-
Microwave Won’t Turn On? 5 Causes Ranked by Likelihood
Before assuming a part has failed, confirm the outlet actually has power. A dead outlet or tripped GFCI causes more no-power microwaves than any internal fault.
-
Microwave Door Won’t Close or Open? 5 Causes Ranked by Likelihood
Food debris or grease around the latch causes most microwave doors that won’t close or open, well ahead of a worn latch hook or a faulty door switch.
-
Microwave Tripping Breaker or Blowing Fuse? 5 Causes Ranked by Likelihood
A microwave that trips the breaker only while it’s running is signaling an internal short, most often in the door switch first, before the capacitor, magnetron, or transformer.
-
Whirlpool Microwave Not Heating? The Exact Demo Mode Combo
Whirlpool’s demo mode has a specific keypad sequence to turn it off, hold “3” for 5 seconds with the door open, that’s easy to trigger by accident too.
-
LG Microwave Not Heating? Child Lock, Sensor Cook & Component Checks
LG’s own support material starts with Child Lock and Sensor Cook settings before component checks, a different order than most brands.
-
Samsung Microwave Not Heating? The Demo Mode Timer Test
Samsung’s own troubleshooting includes a specific test: if the countdown timer runs faster than it should, the microwave is in Demo mode, not actually broken.
-
GE Microwave Not Heating? Why GE Skips DIY Advice on This One
GE’s own support material offers no repair steps beyond two checks, tied to the same capacitor shock hazard behind most microwave repairs.
-
Microwave Turntable Not Turning? 3 Causes Ranked by Likelihood
Food debris under the glass tray causes most stuck turntables. Cleaning the roller guide fixes the majority of cases before you need to replace any part.
-
Microwave Sparking or Arcing Inside? Causes and When to Stop Using It
Sparking almost always traces back to metal inside the cavity or a grease-soaked waveguide cover, not a failing magnetron. Both are quick, safe fixes.