Green indicator lamp Operating is not illuminated

Possible cause: Main switch turned off or power supply interruption. Check the main switch settings and verify the 12V supply line. If the issue remains unresolved, contact an authorised service agent.

Red indicator lamp Failure is illuminated permanently

Possible cause: Could be no gas supply, insufficient combustion air, a heavily soiled rotor, or a faulty fuse.. Reset by switching off and back on. Check the gas supply and the fuse. Have a specialist carry out repairs if the fault continues.

Error Flash operation: Red indicator lamp flashes

Possible cause: The appliance's supply voltage is outside its range - either too high or too low.. Charge the battery or check the electrical voltage supply to ensure it is within operating limits.

Burner makes an unusual noise or flame lifts off

Possible cause: Faulty gas pressure regulator. Have the gas pressure regulator checked by an authorised specialist.

Exhaust gas blow-back (misfire)

Possible cause: Exhaust gas system anomaly or combustion disruption. Have the exhaust system looked at by an expert straight away.

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Truma • Space Heater

Truma Trumatic E LPG Heater

The Trumatic E series are liquid gas (propane/butane) space heaters equipped with electronic control, built-in air distribution, and a room thermostat for caravans, motorhomes, boats, and commercial vehicles. They provide adjustable heating and ventilation performance with integrated safety features and remote control options.

View official manual on manufacturer's site ↗

Technical Specifications

Operating Voltage12V DC / 24V DC

Power Consumption0.5 - 2.3 A (at 12V), 0.4 - 1.06 A (at 24V), Standby: 0.01 A

Gas Or PressureLiquid gas (propane/butane), 30 or 50 mbar

Fuse Ratings3.15 AT (slow-acting) EN 60127-2-3 (Appliance fuse F1)

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Possible Cause	Step-by-Step DIY Fix	Suggested Actions
`N/A`	Green indicator lamp Operating is not illuminated	Main switch turned off or power supply interruption	Check the main switch settings and verify the 12V supply line. If the issue remains unresolved, contact an authorised service agent.	DIY Check / Tech Fallback
`N/A`	Red indicator lamp Failure is illuminated permanently	Could be no gas supply, insufficient combustion air, a heavily soiled rotor, or a faulty fuse.	Reset by switching off and back on. Check the gas supply and the fuse. Have a specialist carry out repairs if the fault continues.	DIY Check / Tech Fallback
`Flash operation`	Red indicator lamp flashes	The appliance's supply voltage is outside its range - either too high or too low.	Charge the battery or check the electrical voltage supply to ensure it is within operating limits.	DIY Safe
`N/A`	Burner makes an unusual noise or flame lifts off	Faulty gas pressure regulator	Have the gas pressure regulator checked by an authorised specialist.	Professional Intervention Required
`N/A`	Exhaust gas blow-back (misfire)	Exhaust gas system anomaly or combustion disruption	Have the exhaust system looked at by an expert straight away.	Professional Intervention Required

Frequently Asked Questions

Q: Can the Trumatic E heater be operated while the vehicle is moving?

Yes - the Trumatic E has been tested and approved for use while the vehicle's moving, subject to whatever national rules apply to liquid gas appliances in transit.

Q: What should I do if the gas system is leaking, or I smell gas?

Put out all naked flames, don't smoke, switch off appliances, turn off the gas at the cylinder, open the windows, avoid electrical switches, and have the whole system checked by an expert.

Q: What type of fuse is required for the appliance?

The electronic control board's fine-wire fuse must only be swapped for one of the identical type: 3.15 AT (slow-acting), EN 60127-2-3.