Microwave Sparking

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   Stop the cycle and look for smoke, flame, scorch, cavity damage, or arcing that continues.

   Expected result: Any is present.

   Next step: Disconnect power only if safe, keep unused, and arrange qualified service/emergency help.

   Stop if: Stop if there is a safety hazard or internal access would be required.

   Why this matters

   Why: This is a fire or safety boundary.

2. Check 2

   After cooling, identify foil/metal, metallic trim, twist tie, or dense food with intact skin.

   Expected result: Unsuitable metal/food is present or no clear cause exists.

   Next step: Use microwave-safe cookware and food preparation; do not repeat if cavity is damaged.

   Stop if: Stop if there is a safety hazard or internal access would be required.

   Why this matters

   Why: Whirlpool identifies food and cookware contributors; no cause leaves an oven fault more likely.

3. Check 3

   With power off, wipe visible residue from cavity and door edge; do not remove covers or waveguide parts.

   Expected result: Residue clears with no damage, or burned/peeling damage remains.

   Next step: Leave unused if damaged and arrange service.

   Stop if: Stop if there is a safety hazard or internal access would be required.

   Why this matters

   Why: Residue can cause a one-time event; cavity damage needs service.

4. Check 4

   Do not conduct repeated empty tests; record model and spark location for service.

   Expected result: Sparking recurs with safe cookware or oven operates abnormally.

   Next step: Keep disconnected and obtain qualified microwave service.

   Stop if: Stop if there is a safety hazard or internal access would be required.

   Why this matters

   Why: Recurrence points to an internal fault.