Hello all, I am looking to tap into the vast knowledge base of this forums membership. I have a 1993 Catalina 34 (1267) located in San Diego. The original owner had a VOLVO FLYGOMOTOR diesel installed when they purchased the boat new in 1993 in Washington. I have used the heater only a handful of times (San Diego) and it worked great up until last year. Last winter I turned it on to break the chill on one of our cold 55 Degree mornings and nothing but cold air came out. I heard the igniter clicking and the blower fan turned on but no heat. Eventually I started to smell diesel so I immediately turned it off. I took the cover off the furnace located in the port lazarette and there was some fuel that had leaked out. when the furnace is turned on there is fuel leaking from a fuel line and what I think is a small fuel pump or filter. Is it clogged fuel line, bad fuel pump, ??? I contacted Scan Marine in Washington and they suggested that I just replace the entire unit which doesn't seem right to me. The heater has always worked flawlessly over the past four years when needed up until last winter and the heater unit itself looks brand new. Any help guidance would be much appreciated.