I have a 18 tonner eurocargo with a eberspacher night heater its just a dial type switch beside the handbrake that goes from 0 to 4.
Problem is it runs fine but when left on during the night it doesnt come on and off itself to regulate the heat.
i have to turn it back to 0 wait for a bit then turn it up to 4 when it comes on runs its cycle and thats it
any ideas of what i can do to have it come on and off it self so a set heat is maintained all night