Breville Excess Condensation / Drainage Issue

Microwave leaks water or condensation onto the counter or inside the door after cooking.

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Possible Causes

Blocked ventilation causing condensation buildup, Damaged or loose door gasket, Excess steam from high-moisture foods, Cracked inner door liner

How to Fix / Troubleshooting

Safety: Unplug the microwave before cleaning. Water around electrical outlets can be hazardous.

User-level steps:

  • 1. Wipe moisture: After cooking, open the door and wipe away condensation from the interior walls and door.
  • 2. Improve ventilation: Ensure the microwave has adequate clearance and that vents are not blocked, allowing moisture-laden air to escape.
  • 3. Inspect door seal: Check the rubber or plastic gasket around the door for cracks, gaps, or deformation.
  • 4. Use shorter intervals: For very moist foods, cook in shorter bursts and open the door between cycles to vent steam.

If water consistently leaks from the door area or you see damage to the door seal or inner liner, have a technician inspect and replace the door gasket or door assembly as needed.

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Repair Difficulty

Easy 2/5

Required Part

Door Gasket / Seal
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