PDX 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 vertical air intake bracket.
Step 7. Disconnect vertical air intake from blower.
Step 8. Remove the three blow er mounting screws
(¼" nut driver).
Step 9. Remove blower with gasket from water heater.
Blower Mounting
Screws
Blower
Cord Sets
Step 10. Clean any debris from jacket h ead of water heater.
Step 11. 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 12. Secu re blower in place using m ounting screws from ste p 8.
Step 13. Slide vertical airintake tee onto blower.
Step 14. Re-install vertical air intake bracket.
Step 15. Re-i nstall exhaust adapter from step 4.
Step 16. Reconnect ventsystem to exhaust adapter.
Step 17. Recon nect cord sets from ste p 5.
Step 18. Plug blower power cord into wall outlet.
Step 19. Position gas control power switch to the “ON” position.
Step 20. Verify proper blower operation.
Locating Pins
on blower flange
Pin location holes in
jacket head
Remove exhaust
adapter and retainfor
use on new blower.
Blower removalBlower Installation
Page 22
PDX Series
Vertical air intake
bracket
Vertical air intake
22