Grundig
Internal Bypass Leak to Drip Tray
Water collects inside the drip tray very quickly, even when not brewing coffee.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Worn brew group seals, Leaking three-way valve, Overpressure valve discharging to tray, Cracked internal hose to brew group
How to Fix / Troubleshooting
Safety first: Unplug the machine before removing the drip tray or brew group.
- Monitor when water appears: Note whether water enters the tray during heating, rinsing, or idle periods. This helps identify the leaking component.
- Clean and inspect brew group seals: Remove the brew group and check the piston seals for wear or cracks. Clean and lightly lubricate with food-grade silicone grease.
- Descale: Run a descaling cycle to ensure valves are not stuck partially open due to scale.
- Service if persistent: If the tray fills rapidly, the three-way valve or internal hoses may be leaking and should be replaced by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Brew Group Seals / Three-Way Valve
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