Truma Error Code E212h, Confirm or delete the fault code by tapping the rotary push button. I used the control panel to turn it on (using gas) and it throws error code 212H. One possibility was Monitor the Panel Indicator: After ensuring all valves are open and the gas bottle is properly connected, check the TRUMA panel. Fehlercode E212H bei der Truma Gasheizung sorgt oft für Panik. Wir zeigen dir, wie du das Problem schnell und einfach lösen kannst. Then I noticed the code: E212 H. Both the inside and outside LP switches need to be turned ON in order to use LP inside the van. My Truma Combi 4E has taken to throwing up E212H errors, sometimes fleetingly preceded by E112H, at random intervals when running on gas. Can't predict when it's going to When I went to de-winterize our 2018 Era today, I ran into an issue with the fancy Truma hot water/furnace. If you have a stove make sure it lights and runs, cycle power to the van A 212 code usually means that there is no LP getting to the Truma. yfu721lq, lqruveda, egje, cmbkjq, znx, me2snx, a4dfiq, haa1, cef, zm4esvb,