Hi everyone I have been reading this forum with great interest as i have a hydronic 10 fitted to my sailing boat and have spent the last two months trying to get the thing back working !
I have gleaned a great deal of information from various forums and websites and have finally got my unit running again....on red diesel...On a sailing boat the option of two fuel tanks is a no no,
The main thing i have discovered which may help you all is that the fuel pump is adjustable, a fact which is not posted ANYWHERE on te outlet side of the pump there are two nuts, a brass one and a steel one, the brass assembly houses the non return valve for the pump and the steel on adjusts the amount of fuel the pump delivers, when running for extended periods on red diesel, reducing the fuel delivered by a very small amount will cause the unit to run lean and therefore will reduce the carbon deposits, I would not suggest you carry out any adjustments unless your unit is out of warranty and only if you have a timer unit that allows you to reset the lock out as obviously this is a trial and error adjustment and before you get it right you may finf that unit fails to light ! (often )
hope this helps some of you