York YT Fault Code E16
York YT Fault Code E16 is a warning alarm indicating: Oil leak detection. The most common causes include Oil leak detected. Estimated repair time: 1-2 hours (requires oil addition or oil change, filter replacement). This alarm requires immediate attention by a certified HVAC technician.
Alarm Description
Oil leak detection
Brand: York | Model: YT (Centrifugal Chiller (Air-Cooled)) | Code: E16 | Severity: Warning
Observable Symptoms
- Oil sight glass shows low level or empty
- Compressor may make unusual noise from lack of lubrication
- Oil pressure differential alarm may also be active
What to Check First
Before diving into detailed diagnostics, start with this quick first check:
Probable Causes
- Oil leak detected
- Oil level low
- Leak detector fault
Recommended Inspection Steps
- Check oil level
- Inspect for leaks
- Verify detector
- Repair and add oil
Required Tools & Equipment
- EPA-certified refrigerant recovery unit
- Electronic leak detector
- Oil level sight glass inspection tool
- Safety PPE (gloves, safety glasses, face shield)
Estimated Repair Time
1-2 hours (requires oil addition or oil change, filter replacement)
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 York service representative for warranty-covered repairs
Related Fault Codes
Other York YT codes that may be related:
OEM Service Manual Reference
OEM Reference: York YT Centrifugal Chiller Service Manual. Johnson Controls Technical Literature.
Frequently Asked Questions
What does York YT fault code E16 mean?
Fault code E16 on a York YT chiller indicates: Oil leak detection. This is a warning alarm that requires diagnostic attention.
What causes York YT alarm code E16?
Common causes include: Oil leak detected; Oil level low; Leak detector fault
How do I fix York YT error code E16?
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 York service representative.