Aqua hot will not fire. Its dripping diesel out of the exhaust. Works with electric. Used it 2 months ago and was working fine . Lucky I went to the lake instead of the mountains where the nights are I. The 20's. .. lake is 78 today<br/><br/>I check continuity of the thermostats(in the aqua hot)<br/><br/>I also had service done and the flame housing(sp) nozzle and such was replaced. I...