Truma Ultraheat electric additional heater
The Truma Ultraheat is an optional electric additional heater operating on 230 V~ line power, designed exclusively for installation inside specific Truma S-heaters. It offers three operating levels (500 W, 1000 W, and 2000 W) that can be operated individually or simultaneously with gas heating to provide fast, even warm air distribution throughout the vehicle.
View official manual on manufacturer's site ↗Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
Even with Ultraheat switched on, the control panel's green LED stays dark | No 230 V~ power supply available to the unit. | — | Check 230 V~ power supply: verify if other 230 V~ appliances work in the vehicle, check if the line power cable is connected, check if the campsite fuse/circuit breaker has tripped, check if the vehicle residual current circuit-breaker (FI) or distribution board fuses have tripped. | DIY Safe |
Unusual noises or smells | Potential obstruction, dust accumulation, or overheating condition. | — | Turn off the gas supply, the heater and Ultraheat, and have a qualified expert check the system. | DIY Check / Tech Fallback |
Even with Ultraheat switched on, the control panel's green LED stays unlit. | No 230V power supply is available or reaching the device. | — | Check the 230V power supply: verify if other 230V appliances in the vehicle work, ensure the line power cable is connected, check if the campsite fuse box has tripped, and inspect the vehicle's internal 230V distribution board fuses and residual current circuit-breaker (RCCB). | DIY Safe |
N/A | Damage from improper cable routing or fan operation | Cables routed too close to hot parts, or the fan run without the proper warm-air ducts directing hot air onto the control unit. | Route cables away from hot parts and ensure the correct warm-air ducts are fitted before running the fan. | DIY Safe |
Frequently Asked Questions
Q: Can I use Ultraheat with older Truma S heaters like the Trumatic S 3002?
No - Ultraheat can't be used with any S-heater built before 04/2012, nor with the Trumatic S 3002, S 3002 P, S 5002, S 2200, S 55 T, or S 3002 K / S 5002 K.
Q: What fan setting should be used during electrical mode?
On electrical mode, run the fan at level 3 or above (manual or automatic) to spread warm air through the vehicle quickly and evenly.
Q: Can the Ultraheat be operated separately outside of a Truma S-heater?
No - Ultraheat (the electric additional heater) is only approved for fitting and running inside a compatible S-heater, never on its own or outside a vehicle.
Q: What power settings are available on the Ultraheat?
The additional heater features three operating power levels: 500 Watts, 1000 Watts, and 2000 Watts.
Q: Can the S-heater run on gas and the electric Ultraheat together?
Yes - the S-heater can run on gas while the electric additional heater runs too, though the additional heater may cut out on its own to guard against overheating.