Service Manual

Step 11. Firmly place right side inner door flange against the burner door flange and secure with two ¼” drive
screws from step4d(see photo 7). DO NOT OVER TIGHTEN SCREWS.
Step12. Align rightside inner doorto combustion chamber and verify the fastener holes of the combustion
chamber arealignedwith the rightside inner
doorslottedopening (see photo 7). Verify sealintegrity around
combustion opening. Secure rightside inner door using 1/4” hex drive screws from step 4c.
DO NOT OVER TIGHTEN SCREWS. Verify bothburner and rightsides of the inner door are properly
position
ed and sealed against the combustion chamber.
Step 13. Reconnectspark igniter/flame sensor wireand simulated resistive device to the gas control (See photos 1&2
on page 14).
Step 14. Reconne
ctthe pilottube to the gas control and tighten.
Step 15. Replace outer jacket burner access door.
Step 16. To resume operation follow the instructions locatedonthe lighting instruction labelo
rthe lighting instructions
locatedinthe installation and operation manual.
Position Thermopile Wire,
Pilot Tube and Igniter Wire
Step 10. Position thermopile wires, pilottubeand igniter wire
against burner door flange gasket
(see photo 6).
Secure flange with ¼"
drive screws.
Verify threaded hole
alignment with slotted
openings in inner door.
7
6
UTTW SERVICE PROCEDURE I
Burner and Inner Door/Gasket Removal,
Inspection, Replacement and Reinstallation
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