Daikin WME Fault Code E6
Daikin WME Fault Code E6 is a warning alarm indicating: Compressor motor lock. The most common causes include Compressor seized. Estimated repair time: 4-8 hours (requires refrigerant recovery, compressor changeout, evacuation, and recharge). This alarm requires immediate attention by a certified HVAC technician.
Alarm Description
Compressor motor lock
Brand: Daikin | Model: WME (Water-Cooled Screw Chiller) | Code: E6 | 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
- Compressor seized
- Bearing failure
- Foreign matter in chamber
Recommended Inspection Steps
- Check rotation by hand
- Measure winding resistance
- Inspect oil for metal
- Replace compressor
Required Tools & Equipment
- Digital multimeter
- Oil level sight glass inspection tool
- Safety PPE (gloves, safety glasses, face shield)
Estimated Repair Time
4-8 hours (requires refrigerant recovery, compressor changeout, evacuation, and recharge)
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 WME codes that may be related:
OEM Service Manual Reference
OEM Reference: Daikin WME Water-Cooled Screw Chiller Service Manual. Available through Daikin Applied technical support.
Frequently Asked Questions
What does Daikin WME fault code E6 mean?
Fault code E6 on a Daikin WME chiller indicates: Compressor motor lock. This is a warning alarm that requires diagnostic attention.
What causes Daikin WME alarm code E6?
Common causes include: Compressor seized; Bearing failure; Foreign matter in chamber
How do I fix Daikin WME error code E6?
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.