Truma • Space Heater

Truma TEB-3 / TN-3 Blower

The Truma TEB-3 and TN-3 are high-performance blowers designed for mounting on Truma S 3004 or S 5004 heating systems. They distribute heated air efficiently throughout the vehicle, offering manual and automatic operating modes via external or integrated control units.

Technical Specifications

Power Consumption 12v0.2 to 1.2 A (TEB-3)
Power Consumption 230v0.5 A (TN-3)
Weight Kg1.1 kg (TEB-3) / 1.7 kg (TN-3)

Master Troubleshooting & Diagnostics Matrix

Error Code / IndicatorSymptom / MeaningStep-by-Step DIY FixSuggested Actions
Operational Fault
Incorrect polarity of the control unit and power supply connector.
Check that the polarity is correct when coupling the control unit and power supply connectors.DIY Safe

Frequently Asked Questions

Q: How do you change the fuse of the TEB-3 – 12 V?

Disconnect the voltage from the blower, remove the power supply and control unit connector, loosen the 2 housing screws, pull out the circuit board by the edge, and replace the defective fuse exclusively with one of the same type (M – slow-blow – 2.5 A; 5 x 20 mm; according to EN 60127-2-3).

Q: What electrical requirements must the mains power supply units meet for the TEB-3?

They must supply a regulated output voltage of between 11 V and 15 V, with an AC voltage ripple of less than 1.2 Vpp.