Service Manual

U TTW SERVICE PROCEDURE XIV
Flue Baffle
Inspection and replacement
Step1. Position gas control power switch to the “OFF” position
and unplug water heater from wall outlet.
Step 2.Disconnect ventsystemfrom exhaust adapter on top of
blower.
Step3. Unplug cord sets from blower.(see photo 33).
Ste
p4. Remove the three blower mounting screws
(¼" nut driver)(see photo 33).
Step5. Remove blower withgasket from water heater.
Step6. Remove flue baffle from Heater (see photo 34).
Step7. Inspec
t baffle for deterioration, missing restrictors.
Clean any scale or debris build up. Replace withnew
baffleas necessary.
Step8. Reinstall baffle into flue tube.Be sure baffle
hang
ertab are insertedintonotch location atthe
top of the flue tube (see photos 35 & 36).
Step9 Check Burnertoinsure no scale has accumulatedduring
this operation. See burner cleaning procedure on pag
e 14.
Step 10. Reinstall blower on water heater. Connect vent
system and cordssetto blower. Plug water heater
intowall outlet.
Step 11. To resume operation follow the lighting instruction
locatedonthe
lighting instruction labelorthe lighting
instruction locatedinthe installation and operation
manual.
Blower Mounting
Screws
Blower
Cord Sets
33
Disconnect vent system
from exhaust adapter.
Remove blower to gain access to
flue baffle
Flue Baffle
Flue tube
notch
Baffle shown
installed in flue
tube notch.
Page 35
34
35
36
R
35