All brands · Mini-split troubleshooting
Indoor unit leaking water
What is going on
Water drips from the indoor head.
Likely causes
- Clogged condensate drain line or pan
- Head not level or drain line without slope
- Dirty filters or coil causing freezing then thawing
- Condensate pump failure where used
Check in this order
- Clean the filters
- Check that the indoor unit is level and the drain line slopes downward
- Clear the drain pan and drain line
- Check the condensate pump if one is installed
- Check for coil icing and low airflow
Applies to: Ductless mini-splits
More mini-split guides
- Poor capacity / high head
- Water leaking
- Display shows a strange code or does not answer the remote - DLFSHB indoor
- Multi-zone: one room heats, another will not cool - DLC multi-zone
- Display shows a strange code or does not answer the remote - DLFSHB indoor
- Multi-zone: one room heats, another will not cool - DLC multi-zone
Take it to the job
All guides, error codes and tips work offline in the HVACopedia app.
Source: General HVAC service practice — verify per model. Written in our own words; check the manual for your exact model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.