McQuay WMC Fault Code E32
McQuay WMC Fault Code E32 is a warning alarm indicating: Cooling tower water fault. The most common causes include Cooling tower fan not operating. Estimated repair time: 1-2 hours. This alarm requires immediate attention by a certified HVAC technician.
Alarm Description
Cooling tower water fault
Brand: McQuay | Model: WMC (Water-Cooled Screw Chiller) | Code: E32 | 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
- Cooling tower fan not operating
- Cooling tower water level low
- Condenser water temperature too high
- Cooling tower fill damaged
Recommended Inspection Steps
- Verify cooling tower fan operation
- Check tower water level
- Monitor condenser water temperature
- Inspect tower fill condition
Required Tools & Equipment
- Infrared thermometer or calibrated temperature probe
- 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 McQuay service representative for warranty-covered repairs
Related Fault Codes
Other McQuay WMC codes that may be related:
OEM Service Manual Reference
OEM Reference: McQuay WMC Water-Cooled Screw Chiller Service Manual. Available through Daikin Applied (formerly McQuay) technical support.
Frequently Asked Questions
What does McQuay WMC fault code E32 mean?
Fault code E32 on a McQuay WMC chiller indicates: Cooling tower water fault. This is a warning alarm that requires diagnostic attention.
What causes McQuay WMC alarm code E32?
Common causes include: Cooling tower fan not operating; Cooling tower water level low; Condenser water temperature too high
How do I fix McQuay WMC error code E32?
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 McQuay service representative.