The Truma Combi D comfort plus allows you to power your combination heater and hot water heater with diesel fuel, 12-volt electricity, or in mixed mode.
Truma Combi D comfort plus saves space and weight in your motorhome or RV with an RV furnace and water heater in one appliance. Backed by years of engineering, experience, and industry knowledge, Truma has integrated a 2.64 gal. (10L) water tank into the furnace. This way, the water will be heated even in cold weather. In warmer weather, you can get hot water for your shower and everyday needs independent of the furnace. The added 20,400 BTU/h operating level makes the Combi D comfort plus powerful enough for larger travel trailers and motorhomes.
In addition to the two-in-one functionality, the Combi D comfort plus also has integrated electric heating elements. The heater offers modes for every camping lifestyle: gas mode for self-sufficient “off-the-grid” camping, electric mode for full hook-up at the campsite, and mixed mode for efficient heating in extremely low temperatures.
Truma introduced the Combi to the RV industry in 2007, the first RV furnace of its type. Since then, Truma has continued to innovate and evolve this heating technology. Hot air and hot water from one smart appliance provide the comforts of home while out on the road. The water tank is integrated into the furnace, providing hot water while it produces hot air. In summer mode, you can turn off the furnace and heat just the water.
Truma Combi owners are just one step away from achieving complete comfort. You can already manage your heat and hot water with one appliance, controlled by the CP plus control panel. Now you can upgrade your RV with a brand new Truma Aventa rooftop air conditioner with its own dedicated wireless remote control.
How do I winterize my Truma Combi D comfort plus?
Please refer to your RV manufacturer’s instructions for winterizing and bypass valves.
My CP plus is showing error code E8. What should I do?
If your CP plus control panel is displaying error code E8, disconnect and reconnect power to the CP plus. Make sure all connections are clean and making good contact. If the error persists, please contact Truma Customer Care for additional support.
My CP plus is showing error code E18. What should I do?
If your CP plus control panel is displaying error code E18, it means your air intake is obstructed. Clear the air intake and check warm air outlets for blockage or crushed ducting. If the error persists, please contact Truma Customer Care for additional support.
My Combi will not stay lit but I am not getting an error code. What should I do?
If your Truma Combi will not stay lit but you are not receiving an error code, check to make sure the tank has not frozen. If the tank freezes, it can become swollen and restrict the air flow into the ducting. This could cause the unit to overheat and cycle off. If the error persists, please contact Truma Customer Care for additional support.
My Combi will not operate on 110 V power. What should I do?
If your Combi will not operate on 110 V power, please try these troubleshooting steps:
If you verify all the steps above and are still having problems, contact Truma Customer Care for additional support.