Dantherm products are engineered to perform and built to last in mission-critical environments. While our units are designed to operate with minimal oversight, a proactive maintenance routine helps extend equipment life, optimize energy efficiency, and ensure uninterrupted uptime.
The following article presents best practices for maintaining Dantherm units which apply to all of our product families including CoolCore™, EcoFlow®, HexFlow®, PrecisionAir®, WS/SL, and ThermoFlow® models according to current factory manuals and recommendations. Dantherm systems are designed for ease of service, featuring:
- Exterior filter access (WS/SL models)
- Easy access to internal components
- Modular layouts for faster diagnostics
- Minimal tools required for routine tasks
Safety First: Follow These Precautions
Before you start any maintenance make sure to:
- Disconnect power to the unit
- Wait at least 5 minutes for internal piping and electrical components to cool
- Confirm all grounding connections are secure
- Use proper PPE: safety glasses, gloves, ear protection, and long sleeves
- Never service units with damaged cords or enclosures
Tools Required for Proper Maintenance
We recommend the following tools for routine servicing to ensure proper access and cleaning:
- T25, T20, T15 Security Torx drivers
- 7/16” telecom can wrench/socket
- 5/16”, 7mm, 8mm nut drivers and wrenches
- DC clamp meter
- Vacuum cleaner or compressed air
- Soft brush (for coils and fan blades)
- AC-safe coil cleaning agent (optional, for heavy buildup)
Phased Maintenance Process
Dantherm manuals recommend a step-by-step approach:
1. Visual Inspection
- Check for dents, rust, or loose panels
- Remove debris from exterior vents
2. Filter & Coil Cleaning
- Clean or replace filters regularly (externally accessible on WS/SL units)
- Use a vacuum or compressed air to remove dust from evaporator and condenser coils
- If buildup remains, apply a non-corrosive coil cleaner and rinse carefully
3. Fan & Component Check
- Inspect fan blades for cracks or debris
- Ensure fan guards, gaskets, and panels are intact and secure
- Check drain lines for clogs and verify drainage
4. Electrical & Sensor Inspection
- Check terminal connections for tightness
- Inspect wiring insulation for wear or damage
- Test alarm systems, thermostats, and onboard controllers
5. Cooling Circuit Testing
- Use a DC clamp meter and pressure gauges to verify the cooling circuit is working efficiently
- Check for refrigerant loss, proper setpoint response, and cooling thresholds
6. Final Inspection
- Confirm all panels and covers are reinstalled and secure
- Remove tools from inside the unit
- Power on the system and verify operational behavior and airflow direction.
HexFlow and ThermoFLow Maintenance Notes
These units do not follow the standard phased maintenance structure, but they do still require routine cleaning. The following steps will help maintain proper airflow and ensure long-term performance without risking any damage:
- Clean the fan and heat exchanger core using a soft bristle brush only as dust or residue can build up
- Water is not recommended
- Reconnect power after service
Written Maintenance Log: Protect Your Warranty
We recommend keeping a written service log which serves as adequate proof of preventative maintenance for warranty protection. The written log should include:
- Date of service
- Tasks performed
- Observations or abnormal conditions
- Technician name or initials
Service Frequency
- Every 6 months in standard environments
- Every 2 months in dusty, corrosive, or high-use conditions
Failure to follow prescribed intervals or use unauthorized tools and chemicals may void the factory warranty.
Every Dantherm product family has a dedicated manual available online that include model-specific diagrams and instructions.
To review these manuals, or if you would like to request technical assistance from our team, contact us at tech support today.