Truma Trumatic E 2400 E
The Trumatic E 2400 E is a fan-assisted gas space heater designed for installation in motor vehicles with natural gas engines (CNG). It provides reliable heating and ventilation capabilities, featuring dual power settings (full load and partial load) and operation permitted while the vehicle is in motion.
Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
Operational Fault | No operating voltage or device/vehicle fuse is defective. | Check 12 V / 24 V battery voltage and charge if necessary; check all electrical plug connections; check unit or vehicle fuses and replace if necessary. | DIY Safe |
Operational Fault | The temperature setting on the control panel is lower than the room temperature, or a window above the cowl is open (window switch). | Select a higher room temperature at the control panel or close the window. | DIY Safe |
Operational Fault | Window above the cowl is open (window switch active) or undervoltage range (12 V: 10.9 V – 10.5 V, 24 V: 21.8 V – 20.7 V). | Close the window or charge the battery. | DIY Safe |
Operational Fault | Overvoltage range (12 V: 15.8 V – 16.4 V, 24 V: 31.8 V – 33.1 V). | Check battery voltage and voltage sources such as the charger. | DIY Safe |
Operational Fault | Valves in gas supply line are closed, or combustion air infeed / exhaust outlet is sealed/blocked. | Check gas supply and open valves; remove cowl cover; inspect openings for contamination (slush, ice, leaves, etc.) and remove. | DIY Safe |
Operational Fault | Warm air outlets are blocked or circulated air intake is blocked. | Inspect individual outlet openings and remove any blockages from the circulated air intake. | DIY Safe |
Frequently Asked Questions
Q: Can the Trumatic E 2400 E be operated while the vehicle is in motion?
Yes, the Trumatic E heater has been checked and approved for operation while the vehicle is being driven. The fan-assisted burner ensures problem-free functionality even in extreme wind conditions, provided national restrictions for operating gas equipment while driving are observed.
Q: What should I do if a failure occurs and the red LED lights up?
The failure can be cleared by switching the system off and on again at the control panel (or opening and closing a window connected to a window switch for a reset). If the issue persists, contact Truma Service.
Q: Are there specific gas requirements for this heater?
Yes, this unit is designed for natural gas systems (from the vehicle-internal CNG system) and requires an operating pressure of exactly 50 mbar.