Inner Door Removal, Inspection & Replacement - Bradford White UPV Series Service Manual

UPV Service Procedure XIV – Inner Door/Gasket Removal, Inspection,
and Replacement
Inner Door Removal Procedure
Step 1. Position gas control power switch to the "OFF" position.
Step 2. Remove outer jacket burner access door.
Step 3. Disconnect main burner feedline (3/4"
wrench), pilot tube (7/16" wrench) and
white igniter/flame sense wire from the
gas valve.
Step 4. Remove (4) ¼" hex drive screws from right
side inner door.
Step 5. Remove (3) ¼" drive screws from left side burner door.
Step 6. Remove the connectors attached to the resettable
thermal switch on the manifold mount.
Step 7. Remove the flammable vapor sensor from the clip by
pushing down the tab to open the clip.
Step 8. Remove inner door and inspect per step 9.
Step 9. Fully inspect inner door gaskets for the following:
• Tears
• Missing material
• Cracks
• Dirt or debris
• Other imperfections that will inhibit proper seal
• Gasket adhesion to inner door
• Material on combustion chamber
If the gasket is not affected by any of the above, gasket
replacement may not be required. If replacement is required,
proceed to Inner Door Gasket Replacement Procedure.
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