18. Check For Water Leaks; 19. Replace Circuit Board; 20. Replace Case Top Covers; 21. Replace Front Cover - Noritz NR50 Series Instructional Manual

Procedure

18. Check for water leaks

(1) Replace water inlet filter
(2) Turn on cold water shut off valve
slowly (check for leaks around "C"
clamps)
(3) If you get leaks shut off water and re-
secure "C" Clamps.

19. Replace Circuit Board

(1) Replace circuit board on right side of
the case
(2) Secure the screw to the circuit board

20. Replace case top covers

(1) Place larger top cover first, then
gasket, then smaller cover over flue
(2) Secure top covers with 4 screws
NOTE: This step will be skipped with
OD Model Units

21. Replace Front Cover

(4) Secure front cover with 4 screws
(5) Turn on gas
(6) Return electrical power to the unit
Diagram
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