Fluid Circulation Pump
©Aqua-Hot®
250-D03 Diesel Series Service Manual
REV 220302
p. 48
Detaching the Burner
Step 3: Disconnect the Diesel Burner’s Controller
Locate the controller and disconnect both plugs.
Diesel Burner
Controller
Step 4: Remove the fuel lines from the Aqua-Hot
1. Locate where the fuel lines on the diesel burner connect to
the Aqua-Hot bulkhead fittings.
2. Using a
7
/
16
” wrench, loosen the nuts securing each fuel
line to the Aqua-Hot.
Figure 67
Figure 69
Figure 70
Diesel Burner Controller
Figure 68
NOTE:
Be sure to note the fuel line ports. The fuel ports on
a D03 product are reversed from the previous D01 products.
Diesel Fuel Return
Diesel Fuel Supply
