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UPV Service Procedure XIII – Diptube Inspection and Replacement
Flue Baffle Inspection and Replacement
Step 1. Position gas control power switch to
the "OFF" position and unplug blower
from wall outlet.
Step 2. Disconnect vent system the top of
blower. Remove the three blower
mounting screws (1/4" nut driver)
(see photo 27).
Step 3. Unplug harness from blower.
Step 4. Remove blower with gasket from water heater.
Step 5. Remove flue baffle from heater (see photo 28).
Step 6. Inspect baffle for deterioration and any missing restrictors. Clean any scale or debris build
up. Replace with new baffle as necessary.
Step 7. Reinstall baffle into flue tube. Be sure hanger tabs are inserted into notch location at the
top of the flue tube (see photos 28 & 29).
Step 8. Check burner to ensure no scale has accumulated during this operation. See Burner
Cleaning Procedure.
Step 9. Connect vent system and cord set to blower. Reinstall blower on water heater. Plug water
heater into wall outlet.
Step 10. To resume operation, follow the lighting instruction located on the lighting instruction label
or the lighting instructions located in the Installation and Operation Manual.
Blower
mounting
screws
29
33
Disconnect vent
system from blower
28
30
27
33
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