De'Longhi
Water Tank Detection Fault
De'Longhi dehumidifier display and buttons work, but the unit shuts off as soon as the water tank is inserted.
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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
Misaligned or broken tank actuator lever, Stuck tank full switch, Damaged tank causing poor engagement, Faulty tank detection micro-switch
How to Fix / Troubleshooting
Safety first: Unplug the unit before inspecting the tank area.
Step-by-step:
- 1. Inspect tank shape: Check the tank for warping, cracks, or broken tabs that engage the internal switch.
- 2. Observe switch actuator: With the tank removed, locate the plastic lever or pin that the tank pushes to operate the tank switch. Ensure it moves freely.
- 3. Test switch manually: Gently press the actuator with a non-metallic tool while the unit is powered (exercise caution). If the unit runs with the actuator pressed but stops when the tank is inserted, the tank may not be engaging it properly.
- 4. Adjust or replace tank: Replace a deformed tank or adjust its seating guides so it fully depresses the switch.
- 5. Replace micro-switch: If the switch does not respond reliably, replace the tank detection micro-switch.
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Repair Difficulty
Medium
3/5
Required Part
Water Tank Detection Micro-Switch
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