Fluid Circulation Pump
©Aqua-Hot®
250-D03 Diesel Series Service Manual
REV 220302
p. 82
Step 5: Clean and Inspect the Combustion Chamber and Heat Transfer Tabs (continued)
3. Inspect the Combustion Chamber assembly and Air Swirler for damage or signs of warping.
• Inspect the outer ring that the photo disc seats against for signs of warping.
• Inspect the back side of the Air Swirler for signs of warping between screws.
Burner Maintenance
Failure to reinstall the combustion chamber will
result in serious damage to the diesel burner�
Outer ring that
the photo disc
seats against
Back side of
air swirler
Step 6: Reinstall the Combustion Chamber
1. Reinstall the Combustion Chamber assembly and the Air Swirler into the Aqua-Hot.
NOTE:
It will be necessary to replace the combustion
chamber gasket any time the combustion chamber is
removed.
Combustion Chamber
Assembly
Figure 140
Figure 141
Figure 142
Figure 143
Air Swirler
Nut Securing
the Combustion
Chamber
Combustion Chamber
Gasket
Combustion Chamber
Assembly
Swirler Housing
