Daikin EWAD Fault Code EE
Daikin EWAD Fault Code EE is a warning alarm indicating: Drainage system fault. The most common causes include Drain pan clogged with debris. Estimated repair time: 1-2 hours. This alarm requires immediate attention by a certified HVAC technician.
Alarm Description
Drainage system fault
Brand: Daikin | Model: EWAD (Screw Compressor Chiller) | Code: EE | Severity: Warning
Observable Symptoms
- Controller displays alarm code and description
- Chiller may be locked out or running in degraded mode
- Alarm indicator light is illuminated on control panel
What to Check First
Before diving into detailed diagnostics, start with this quick first check:
Probable Causes
- Drain pan clogged with debris
- Drain pump failure
- Drain line blocked or frozen
Recommended Inspection Steps
- Clean drain pan and remove debris
- Test drain pump operation
- Clear drain line blockage
- Check drain line for proper slope and insulation
Required Tools & Equipment
- Coil cleaning brush and coil cleaner
- Digital multimeter
- Safety PPE (gloves, safety glasses, face shield)
Estimated Repair Time
1-2 hours
When to Call a Professional
- If the fault persists after completing all recommended inspection steps
- If you observe unusual noises, vibrations, or oil leaks from the compressor
- If refrigerant charge levels are outside OEM specifications and EPA-certified recovery is needed
- If electrical measurements show voltage imbalance greater than 2% between phases
- If the fault recurs immediately after reset, indicating an unresolved safety condition
- Contact an authorized Daikin service representative for warranty-covered repairs
Related Fault Codes
Other Daikin EWAD codes that may be related:
OEM Service Manual Reference
OEM Reference: Daikin EWAD Air-Cooled Screw Chiller Service Manual. Available through Daikin Applied technical support.
Frequently Asked Questions
What does Daikin EWAD fault code EE mean?
Fault code EE on a Daikin EWAD chiller indicates: Drainage system fault. This is a warning alarm that requires diagnostic attention.
What causes Daikin EWAD alarm code EE?
Common causes include: Drain pan clogged with debris; Drain pump failure; Drain line blocked or frozen
How do I fix Daikin EWAD error code EE?
Follow the recommended inspection steps below. Start with the quick check, then proceed through each step. If the fault persists after all steps, contact an authorized Daikin service representative.