Bradford White TW4-75S-76B-3X - Manual (Page 21)

TTW SERVICE PROCEDURE IV
Blower Testing and Replacement
Step 1. Position gas control power switch to the “OFF” position.
Step 2. Unplug blower power cord from wall outlet.
Step 3. Disconnect vent system from exhaust adapter on top of
blower.
Step 4. Remove exhaust adapter from blower (blade screw driver)
and retain for use on new blower
Step 5. Unplug cord sets from blower.
Step 6. Remove the three blower mounting screws
(¼" nut driver).
Step 7. Remove blower with gasket from water heater.
Blower Mounting
Screws
Blower
Cord Sets
Step 8. Clean any debris from jacket head of water heater.
Step 9. Set new blower with gasket in place using locating pins on
blower flange to line up with location holes in jacket head.
Be sure not to damage gasket.
Step 10 Secure blower in place using mounting screws from step 6.
Step 11. Re-install exhaust adapter from step 4.
Step 12. Reconnect vent system to
exhaust adapter.
Step 13. Reconnect cord sets from step 5.
Step 14. Plug blower power cord into wall outlet.
Step 15. Position gas control power switch to the “ON” position.
Step 16. 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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