Service Manual

UTTW SERVICE PROCEDURE V
Blower Testing and Replacement
Step1. Position gas control power switch to the “OFF”
position and unplug heater from wall outlet.
Step 2.Disconnect ventsystemfrom exhaust adapter
on top of blower.
Step3. Removeexhaust adapter from blower (bla
de
screwdriver) and retain for use on new blower.
Step4. Unplug cord sets from blower.
Step5. Remove the three blower mounting screws
(¼" nut driver).
Step6. Remove blower withgasket from w
ater heater.
Blower Mounting
Screws
Blower
Cord Sets
Step7. Clean any debris from jacket headofwater heater.
Step8. Set new blower withgasket in place using locating pins on
blower flange to line up with location holes in jacket head.
Be sure nottodam
age gasket.
Step9. Secure blower in place using mounting screws from step6.
Step 10. Re-install exhaust adapter from step4.
Step 11. Reconnect ventsystem to
exhaust adapter.
Step12.Reconnect cord sets from step5.
Step 13. Plug blower power cordintowall outlet.
Step 14. Position gas control power switch to the “ON” position.
Step 15. Verify proper blower operation.
Locating Pins
on blower flange
Pin location holes in
jacket head
Remove exhaust adapter
and retain for use on
new blower.
Blower Removal
Blower Installation
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Gas Control shown in the “OFF” position
R
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