Service manual

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© January 2013 Aqua-Hot
®
600-D01 Series Hydronic Heating System Service Manual - Rev. A
SECTION 9: DIESEL-BURNER COMPONENTS
Flame Sensor Replacement Procedure:
1. In order to perform the following procedures it is
necessary to detach diesel-burner head. Be sure to
review the detaching/attaching instructions in sec-
tion 8.
2.
Remove the screw that fastens the flame sensor to
the photo disc and detach the sensor’s green and
blue wires from the C-plug harness’ green and vio-
let wires, and remove flame sensor.
3. Slide the tab of the new flame sensor into the pro-
vided slot in the photo disc and secure in place with
the screw. Connect the flame sensor’s green wire to
the green C-plug harness wire and the blue wire to
the C-plug harness’ violet wire.
4. Follow the directions for reattaching the diesel
burner, in section 8 of this manual.
Figure 50