Applicable Systems
DX280 Excavator
PUMA MX Series
PUMA TT Series
Symptoms
Alarm 2078: OIL COOLER ALARM. The CNC system displays this alarm on the operator panel.
Possible Causes
- Coolant or lubricant level low
- Pump or valve malfunction
Troubleshooting Steps
- Step 1: Read alarm 2078 on the CNC display and note the full alarm message
Alarm code and description displayed for diagnosis - Step 2: Check the machine status and identify any obvious mechanical, electrical, or pneumatic issues
Visible faults identified or confirmed as intermittent - Step 3: Consult the manufacturer manual for alarm-specific troubleshooting procedures
Root cause identified per manufacturer guidelines - Step 4: Apply the recommended fix and reset the alarm
Alarm cleared and machine resumed normal operation
How to Reset
To reset alarm 2078: 1) Address the root cause. 2) Press the RESET key on the CNC panel. 3) If the alarm persists, cycle power to the control. Caution: Repeated alarms without fixing the cause may cause damage.
Frequently Asked Questions
- Q: What does alarm 2078 mean?
Alarm 2078 indicates: OIL COOLER ALARM. Follow the troubleshooting steps to resolve the issue.
Comments (0)
Share your experience to help others facing the same problem.
Leave a Comment
Source: HelmanCNC.com - https://www.helmancnc.com/doosan-mx-series-alarm-list/
Category: CNC
Published: 2026-11-02
No comments yet. Be the first to share your experience!