Appliance repair
Microwave Repair Requests
Requests cover countertop, over-the-range and built-in microwaves that run without heating, spark, have faulty doors or have turntables and keypads that quit.
Microwaves can seem simple, yet they hide high-voltage parts behind the cabinet. Common complaints include food that stays cold while the unit hums, sparks inside the cavity, a turntable that won’t rotate, a door that doesn’t latch and a keypad that ignores presses. Over-the-range models also include a vent fan and light that can fail.
Your request is passed to independent local repair professionals, who may contact you to diagnose the microwave and quote their own price. You choose whether any repair goes ahead.
Signs Your Microwave May Need a Professional
- It runs and hums but food doesn’t warm up
- Sparks, flashes or popping inside the cavity
- The turntable doesn’t rotate
- Buttons don’t respond or the display is blank
Common Microwave Problems
Runs but doesn’t heat
This is often caused by a failed magnetron, high-voltage diode, capacitor or transformer. A door switch that isn’t registering properly can also stop the heating circuit. These parts carry dangerous voltage and should only be tested by a qualified technician.
Sparking or arcing
Sparks can be caused by metal in the cavity, food residue burned onto the walls or a damaged waveguide cover, the small panel inside the cavity. Chipped interior paint can also lead to arcing.
Turntable not turning
A turntable that won’t rotate may have its tray or roller ring out of position, or the coupler underneath may be broken. A worn turntable motor is another common cause.
Keypad or display not working
Unresponsive buttons are often linked to a worn membrane keypad, a failed control board or a power surge. A blank display could also indicate a blown internal fuse, which a technician can investigate.
Safe Things to Check First
- Stop using the microwave right away if it sparks or smells burnt
- Remove any foil, twist ties or dishes with metallic trim
- Make sure the turntable and roller ring are seated in place
- Open and close the door to see if it latches firmly
Safety: Never open a microwave’s outer cabinet. The high-voltage capacitor inside can hold a dangerous charge even after the unit is unplugged.
What to Include in Your Request
- Brand, model and serial number, often found on a label inside the door frame or on the back or side of the unit
- Whether it is countertop, over-the-range or built in
- What happens when you press start, including any sounds or codes
- For over-the-range units, whether the vent fan and light still work
Microwave Repair FAQs
Is it worth repairing a countertop microwave?
Smaller countertop models may cost less to replace than to repair, depending on the failed part. Over-the-range and built-in units involve installation, which can make repair worth considering. A repair professional can quote a price to help you decide.
Why did my microwave stop working suddenly?
A sudden stop can be caused by a blown internal fuse, a door switch that failed or a tripped breaker. Check the breaker and outlet first. Because internal parts hold high voltage, leave anything inside the cabinet to a repair professional.
Can I keep using a microwave that sparked once?
If sparking happened because metal was inside, it may be fine once removed. If it sparks again with nothing metallic present, stop using it, since damage to the waveguide cover or interior can worsen.
Send Your Microwave Repair Request
Send a free request in a couple of minutes. If an independent professional who serves your area can help, they’ll contact you to arrange a visit and explain their price.