Truma Trumavent TEB-3 / TN-3 Fan
The Truma TEB-3 and TN-3 are auxiliary fans designed for installation on Truma S 3004 or S 5004 heaters to improve warm air distribution throughout the vehicle. The TEB-3 operates on 12 V SELV, while the TN-3 operates on 230 V ~ 50 Hz power supply.
Technical Specifications
Operating Voltage12V DC / 230V AC
Power Consumption0.2 to 1.2 A (TEB-3) / 0.5 A (TN-3)
Fuse Ratings2.5 A (medium time-lag, 5 x 20 mm)
Dimensions Cutout211 x 279 x 145 mm (TEB-3) / 211 x 279 x 158 mm (TN-3)
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
N/A | Control panel is without function and the fan runs in the reverse direction Possible Cause: Incorrect polarity of the control panel and power supply connectors | Check the 12V supply line, inspect the plug fuse, and ensure connections are secure with correct polarity. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
N/A | Fan does not operate Possible Cause: Blown appliance fuse (F1) or disconnected power supply | Disconnect the fan from the power supply, check fuse F1 on the electronic control unit, and replace with an identical fuse (2.5 A, medium time-lag). If the issue persists, have repairs carried out by a specialist. | DIY Check / Tech Fallback |
Frequently Asked Questions
Q: What heaters are compatible with the TEB-3 and TN-3 fans?
These fans are designed for installation on Truma S 3004 or S 5004 heaters.
Q: What type of fuse is required for the TEB-3 12V model?
A medium time-lag fuse rated at 2.5 A (5 x 20 mm) complying with EN 60127-2-3 (e.g., ESKA 521021 or Littelfuse 233 02.5P).