I am upgrading my existing STC with a second tank and fuel boost pump. My original kit included the Fuel Sump heater, but did not include a relay with it. When I purchased the fuel boost heater, I used the relay included and wired it according to your DTC instructions.
1st Question - Since power is comming from the fuse boss which already has a fuse, do I need to use the in-line fuse supplied with the fuel boost pump? When I did the 10AMP fuse blew at the fuel sump heater. I'm confused since the power went through the fuse boss 10AMP fuse and did not blow this fues, but did blow the fuse at the rear heater.
2nd Question - Your wiring diagram does not show a switch to turn off the rear sump heater - I only see it controling the front heater through the thermostat. Is this right or am I missing something? Just wondering if the rear heater is okay to not be switched. There is a power line going from the 20AMP fuse boss directly to the fuel boost pump and the open side of the fuel sump heater thermostat (no switch).
Thanks, Andy