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UPV75 Service Procedure XIV – Inner Door/Gasket Removal,
Inspection, and Replacement
Inner Door Removal Procedure
Step 1. Position the gas control power switch to the
“OFF” position.
Step 2. Remove the outer jacket burner access door.
Step 3. Disconnect the 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
the right side inner door.
Step 5. Remove (4) ¼” drive screws from the
left side burner door.
Step 6. Remove the connectors attached to the resettable
thermal switch on the manifold mount.
Step 7. Remove the inner door and inspect per Step 8.
Step 8. 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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