Hey guys, we have a Planar Diesel heater
aboard our Roughwater 33, it's probably less than 2 years old, installed by the previous owner. For the most part it has seemed to work
out decent heat and when dialled right down it draws very little on the house bank. Recently however in the last few weeks it occasionally will shut down without warning whilst on the continous heat mode, the mode we like to use. I have read into the manual about the error codes etc.. but the control unit doesnt throw any error code, the operation light remains solid. Sometimes it will restart itself after a few minutes but sometimes not. We usually run it on high for a few minutes to get things heated up and then dial it way down to maintain the heat and low amp draw for the night. I did notice the last time I filled the tank that the Diesel
at the station near us contains up to 10 percent bio-diesel.. Could the heater
be picky about its fuel
As for voltage we have a house bank of two deep cycle 105 amp hour 12 volts wired in parallel and I moniter them with a Victron Smartshunt, so the heater unit always has plenty of power on startup and through the night. With it on low it doesnt even get near 50 percent battery
depletion so I don't think it can be a voltage problem.