What causes a microwave sparking?

A microwave sparking can be caused by spark, arc, flash, fire issues. We track 80 error codes across 12 brands related to this symptom.

How do I fix a microwave sparking?

There are 160 community-ranked fixes for this symptom across 12 brands. The average fix success rate is 89%. Find your specific error code below for step-by-step instructions.

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Microwave Sparking

Sparks or arcing inside your microwave? Find error codes for waveguide cover, rack paint, diode, and magnetron issues. Stop use immediately.

Error Codes

Brands

160

DIY Fixes

89%

Avg Success

Amana

1 code

All Amana codes

Not Heating

Microwave Runs But Does Not Heat Food

📡 AMV2307PFS 1.6 cu ft Over-the-Range Microwave 1000W 2-Speed 300 CFM Exhaust Fan· 2 fixes· 90% success

Replace Magnetron or High-Voltage Components

Dacor

1 code

All Dacor codes

Open Temperature Sensor

📡 DMW2420S 24 in 1.2 cu ft 1000W Sensor Microwave Oven· 2 fixes· 90% success

Test and Replace the Temperature Sensor

Frigidaire

32 codes

All Frigidaire codes

Oven Temperature Exceeded Safe Limit

📡 GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 GMOS1266AF 1.2 cu ft Gallery Over-the-Range with Sensor· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

Oven Temperature Exceeded Safe Limit

📡 GMBS3068AF 1.6 cu ft Gallery Built-In Microwave· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 GMBS3068AF 1.6 cu ft Gallery Built-In Microwave· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 GMBS3068AF 1.6 cu ft Gallery Built-In Microwave· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 GMBS3068AF 1.6 cu ft Gallery Built-In Microwave· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

Oven Temperature Exceeded Safe Limit

📡 Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 Frigidaire FMUS2769AF 1.4 cu ft Over-the-Range Low Profile Microwave with Sensor Cooking· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

Oven Temperature Exceeded Safe Limit

📡 FGMV176NTF 1.7 cu ft Gallery Over-the-Range with SpaceWise Rack· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 FGMV176NTF 1.7 cu ft Gallery Over-the-Range with SpaceWise Rack· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 FGMV176NTF 1.7 cu ft Gallery Over-the-Range with SpaceWise Rack· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 FGMV176NTF 1.7 cu ft Gallery Over-the-Range with SpaceWise Rack· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

Oven Temperature Exceeded Safe Limit

📡 FFMV1846VS 1.8 cu ft Over-the-Range Stainless· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 FFMV1846VS 1.8 cu ft Over-the-Range Stainless· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 FFMV1846VS 1.8 cu ft Over-the-Range Stainless· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 FFMV1846VS 1.8 cu ft Over-the-Range Stainless· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

Oven Temperature Exceeded Safe Limit

📡 FFMV1846VD 1.8 cu ft Over-the-Range Microwave· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 FFMV1846VD 1.8 cu ft Over-the-Range Microwave· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 FFMV1846VD 1.8 cu ft Over-the-Range Microwave· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 FFMV1846VD 1.8 cu ft Over-the-Range Microwave· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

Oven Temperature Exceeded Safe Limit

📡 FFCM0724LW 0.7 cu ft Countertop Microwave· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 FFCM0724LW 0.7 cu ft Countertop Microwave· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 FFCM0724LW 0.7 cu ft Countertop Microwave· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 FFCM0724LW 0.7 cu ft Countertop Microwave· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

Oven Temperature Exceeded Safe Limit

📡 FFCE1655US 1.6 cu ft Countertop Microwave· 2 fixes· 85% success

Test and Replace Thermal Sensor or Control Board

MECH-LIGHT

Interior Light Burned Out

📡 FFCE1655US 1.6 cu ft Countertop Microwave· 2 fixes· 90% success

Replace the Interior Light Assembly

MECH-WAVEGUIDE

Waveguide Cover Burned — Sparking

📡 FFCE1655US 1.6 cu ft Countertop Microwave· 2 fixes· 90% success

Replace the Burned Waveguide Cover

MECH-FILTER

Grease/Charcoal Filter Saturated (OTR)

📡 FFCE1655US 1.6 cu ft Countertop Microwave· 2 fixes· 85% success

Replace Charcoal Filter and Inspect Ventilation

GE

18 codes

All GE codes

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JVM7195SKSS 1.9 cu ft Smart Over-the-Range with Scan-to-Cook· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JVM7195SKSS 1.9 cu ft Smart Over-the-Range with Scan-to-Cook· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JVM6175YKFS 1.7 cu ft Over-the-Range with Sensor Cook· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JVM6175YKFS 1.7 cu ft Over-the-Range with Sensor Cook· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JVM6175SKSS 1.7 cu ft Over-the-Range Microwave Stainless Steel· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JVM6175SKSS 1.7 cu ft Over-the-Range Microwave Stainless Steel· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JVM3160RFSS 1.6 cu ft Over-the-Range Microwave· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JVM3160RFSS 1.6 cu ft Over-the-Range Microwave· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JNM3163RJSS 1.6 cu ft Over-the-Range with Recirculating Vent· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JNM3163RJSS 1.6 cu ft Over-the-Range with Recirculating Vent· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JES1460DSBB 1.4 cu ft Countertop Sensor Cook· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JES1460DSBB 1.4 cu ft Countertop Sensor Cook· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JES1145SHSS 1.1 cu ft Countertop with Turntable· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JES1145SHSS 1.1 cu ft Countertop with Turntable· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 JES1095SMSS 0.9 cu ft Countertop Microwave· 2 fixes· 90% success

Test and Replace Faulty Door Interlock Switches

MECH-ARCING

Sparking or Arcing Inside Microwave

📡 JES1095SMSS 0.9 cu ft Countertop Microwave· 2 fixes· 90% success

Test and Replace the Magnetron or Interior Paint Repair

GE Profile

12 codes

All GE Profile codes

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 PWB7030ELES 1.7 cu ft Built-In Microwave with Advantium· 2 fixes· 90% success

Replace All Door Interlock Micro-Switches

MECH-ARCING

Sparking or Arcing Inside

📡 PWB7030ELES 1.7 cu ft Built-In Microwave with Advantium· 2 fixes· 90% success

Replace the Waveguide Cover (Mica Sheet)

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 PVM9215SKSS 2.1 cu ft Smart Over-the-Range with Sensor Cook· 2 fixes· 90% success

Replace All Door Interlock Micro-Switches

MECH-ARCING

Sparking or Arcing Inside

📡 PVM9215SKSS 2.1 cu ft Smart Over-the-Range with Sensor Cook· 2 fixes· 90% success

Replace the Waveguide Cover (Mica Sheet)

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 PVM9179SRSS 1.7 cu ft Convection Over-the-Range· 2 fixes· 90% success

Replace All Door Interlock Micro-Switches

MECH-ARCING

Sparking or Arcing Inside

📡 PVM9179SRSS 1.7 cu ft Convection Over-the-Range· 2 fixes· 90% success

Replace the Waveguide Cover (Mica Sheet)

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 PVM9179DKBB 1.7 cu ft Over-the-Range Convection· 2 fixes· 90% success

Replace All Door Interlock Micro-Switches

MECH-ARCING

Sparking or Arcing Inside

📡 PVM9179DKBB 1.7 cu ft Over-the-Range Convection· 2 fixes· 90% success

Replace the Waveguide Cover (Mica Sheet)

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 PES7227SLSS 2.2 cu ft Countertop Sensor Microwave· 2 fixes· 90% success

Replace All Door Interlock Micro-Switches

MECH-ARCING

Sparking or Arcing Inside

📡 PES7227SLSS 2.2 cu ft Countertop Sensor Microwave· 2 fixes· 90% success

Replace the Waveguide Cover (Mica Sheet)

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

📡 PEB9159SJSS 1.5 cu ft Smart Countertop Convection· 2 fixes· 90% success

Replace All Door Interlock Micro-Switches

MECH-ARCING

Sparking or Arcing Inside

📡 PEB9159SJSS 1.5 cu ft Smart Countertop Convection· 2 fixes· 90% success

Replace the Waveguide Cover (Mica Sheet)

Hotpoint

4 codes

All Hotpoint codes

MECH-INTERLOCK

Door Interlock Switch Failure — Blows Fuse

📡 RVM5160DHWW 1.6 cu ft Over-the-Range Microwave with 1000 Watts and Sensor Cooking· 2 fixes· 90% success

Replace Faulty Door Interlock Switches

MECH-FAN

Exhaust Fan Not Working or Always Running on High

📡 RVM5160DHWW 1.6 cu ft Over-the-Range Microwave with 1000 Watts and Sensor Cooking· 2 fixes· 85% success

Test and Replace Exhaust Fan Motor or Control Board Relay

MECH-ARCING

Sparking or Arcing Inside Cavity

📡 RVM5160DHWW 1.6 cu ft Over-the-Range Microwave with 1000 Watts and Sensor Cooking· 2 fixes· 90% success

Replace the Magnetron or Inspect for Interior Damage

MECH-LATCH

Door Latch Assembly Broken — Door Won't Close

📡 RVM5160DHWW 1.6 cu ft Over-the-Range Microwave with 1000 Watts and Sensor Cooking· 2 fixes· 90% success

Replace the Door Latch Assembly with OEM Parts

Kenmore

1 code

All Kenmore codes

WAVEGUIDE SCORCHED

Waveguide Cover Scorched

📡 721.80373 Elite Over-the-Range Microwave· 2 fixes· 90% success

Replace the Waveguide Cover

KitchenAid

2 codes

All KitchenAid codes

FAN NOISY

OTR Exhaust Fan Noisy or Weak

📡 KMHS120ESS 30 in. 1000-Watt Over-the-Range Microwave· 2 fixes· 90% success

Replace Exhaust Fan Motor Assembly

ARCING INSIDE

Arcing / Sparking Inside Cavity

📡 KMHS120ESS 30 in. 1000-Watt Over-the-Range Microwave· 2 fixes· 90% success

Replace Damaged Waveguide Cover (Mica Sheet)

LG

2 codes

All LG codes

TURNTABLE MOTOR FAIL

Turntable Motor Failure

📡 LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean· 2 fixes· 90% success

Replace Turntable Motor Assembly

MAGNETRON FAIL

Magnetron Failure

📡 LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean· 2 fixes· 85% success

Replace the Magnetron Assembly

Magic Chef

1 code

All Magic Chef codes

SPARKING

Sparking or Arcing Inside Cavity

📡 MC110MST 1.1 cu ft Countertop Microwave· 2 fixes· 90% success

Replace Damaged Waveguide Cover and Repair Interior Paint

Maytag

2 codes

All Maytag codes

SPARKING INSIDE

Sparking Inside Cavity

📡 UMC5225GZ 2.2 cu ft Countertop Microwave· 2 fixes· 90% success

Replace Damaged Waveguide Cover and Touch Up Interior Paint

SPARKING INSIDE

Sparking Inside Cavity

📡 MMV4207JZ 1.9 cu ft Over-the-Range Microwave with Dual Crisp· 2 fixes· 90% success

Replace Damaged Waveguide Cover and Touch Up Interior Paint

Whirlpool

4 codes

All Whirlpool codes

MECH-SPARKING

Sparking Inside Microwave

📡 Whirlpool WMH31017HZ 1.7 cu. ft. Over-the-Range Microwave· 2 fixes· 90% success

Replace Waveguide Cover and Test Magnetron

Power Failure

📡 Whirlpool WMH31017HZ 1.7 cu. ft. Over-the-Range Microwave· 2 fixes· 85% success

Inspect and Repair Internal Power Connections

MECH-SPARKING

Sparking Inside Microwave

📡 Whirlpool WMH53521HZ 2.1 cu. ft. Over-the-Range Microwave· 2 fixes· 90% success

Replace Waveguide Cover and Test Magnetron

Power Failure

📡 Whirlpool WMH53521HZ 2.1 cu. ft. Over-the-Range Microwave· 2 fixes· 85% success

Inspect and Repair Internal Power Connections

Related Symptoms

🔥Microwave Not Heating 🔄Turntable Not Spinning 📺Microwave Display Dead 🚪Microwave Door Issue

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