Danfoss Ally
Moisture Ingress / Condensation
Thermostat or radiator valve area shows signs of condensation or water droplets inside the housing.
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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
Installation in very humid room (bathroom, laundry) without IP‑rated protection, Cold surface causing condensation, Water leak from pipe or valve, Inadequate sealing of housing
How to Fix / Troubleshooting
Safety first: If water is present near electrical connections, isolate power immediately.
Steps:
- Identify source: Determine whether moisture is from condensation or an actual leak from the valve or pipe.
- Dry the unit: Remove the thermostat and allow it to dry thoroughly in a warm, dry place for at least 24 hours.
- Fix leaks: If there is a plumbing leak, have a plumber repair the valve or pipe before reinstalling the thermostat.
- Relocate if needed: Avoid installing non‑IP‑rated thermostats in areas with persistent high humidity or splashing water.
- Replace if damaged: If corrosion or damage is visible inside the thermostat, replace it.
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Repair Difficulty
Medium
3/5
Required Part
Danfoss Ally Thermostat and Radiator Valve
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