Overview
It is normal for outdoor air conditioning units to produce condensation water during operation. This occurs naturally as part of the cooling and defrost processes.
If a customer reports that their outdoor unit is leaking water, it is not a fault — it simply means condensation is draining as intended.
To direct this water safely away from the area, a drain kit can be installed.
Why the Outdoor Unit Leaks Water
When your air conditioner is cooling or defrosting, moisture from the air condenses on the outdoor coil.
This water collects in the base of the outdoor unit and exits through a drainage hole underneath.
If no drain hose has been attached, the water will drip freely onto the ground — this is normal and expected.
Recommended Solution
To manage and control condensate drainage, the following genuine Fujitsu drain components can be fitted:
| Part | Description | Part Number | Function |
|---|---|---|---|
| Elbow Fitting | Outdoor Drain Kit Elbow | 9303029022 | Connects to the outdoor unit’s drain outlet to attach a PVC drain pipe, allowing water to be directed to a suitable drainage point. |
| Cap | Drain Hole Cap | 313166024302 | Used to plug any unused drain holes on the outdoor unit base to prevent unwanted drips or debris entry. |
These parts ensure water drains correctly and the system operates neatly and cleanly.
Action for Installers or Service Technicians
Confirm the water dripping is clear condensate and not a refrigerant or oil leak.
Fit the elbow (9303029022) to the drain outlet and connect a drain hose
Plug any remaining open drain holes with the cap (313166024302).
Route the drain hose to a safe discharge point away from walkways or sensitive surfaces.
Customer Advice
Water dripping from the outdoor unit is a normal function, not a defect.
The drain kit allows this water to be neatly redirected.
If no drain kit is fitted and water runoff is undesirable, a technician can install one easily using the parts listed above.
Summary
Normal behaviour: Condensate water dripping from the outdoor unit.
Solution: Install the Outdoor Drain Kit Elbow (9303029022) and Drain Hole Cap (313166024302).
Outcome: Clean and controlled drainage from the outdoor unit.