Caravan Combi Heater Similar To Truma D6E

This heater has passed professional CE certification. The CE certificate can be seen in the picture below and includes many heater models:

1. Q: The caravan combi heater cannot start. What may be the reason?

A: (1) Power problem: Check whether the battery power is sufficient and whether the fuse is blown.

(2) Fuel problem: Is the diesel/gasoline model correct? Is the oil circuit blocked? Is the oil pump working?

(3) System protection: Low temperature may trigger antifreeze protection. Preheating or checking the ambient temperature is required.

2. Q: After starting up, the fan is running but there is no warm air. How to solve it?

A: (1) Check whether the combustion chamber is ignited normally (listen for the ignition sound).

(2) Confirm whether the fuel supply is unobstructed and whether the fuel injector is blocked.

(3) The heat exchanger may be blocked and needs to be cleaned or repaired.

3. Q: The hot water outlet temperature is unstable and sometimes hot and sometimes cold.

A: (1) Check whether the water pressure is normal (is the water level in the RV water tank sufficient).

(2) It may be a water flow sensor failure and needs to be calibrated or replaced.

4. Q: The warm air temperature is not high enough, and the wind speed is also low.

A: (1) Clean or replace the air filter (dust blockage affects air flow).

(2) Check the combustion efficiency. Poor fuel quality or incomplete combustion will lead to insufficient heat.

(3) The heating duct may be leaking or folded. Check the layout.

5. Q: How often do you need to clean the combustion chamber and heat exchanger?

A: It is recommended to clean it every 50-100 hours of use or once a year. The cycle should be shortened for high-frequency use.