NPS-45 changing the control board with the latest version?

[Don2222]

Hello

Napoleon NPS-45 was one of the last stoves to receive a new digital control board. The older knob controls with the blue potted auger timing bock and blue potted relay module same as the old Enviro EF-2s and EF-3s was quite reliable but not T-Stat ready.

Like any newly designed electronic device rev 0 may have had some issues. The exact details is almost impossible to get but a few reports from satisfied users with a new control panel may be a good indication that if you have any issues, it may be a good upgrade.

In this case there with no surge protector on the stove and triac(s) failure causing the auger and igniter not to work, it is a good time to add a surge protector and upgrade the control board.

So I heard the new board has had at least 2 revisions? Can anyone verify that?

Here are the differences I have found between the 2 control boards and a few pics.

Pic 1 - Napoleon NPS-45 Control Panel on right side of stove.

Pic 2 - Original Control Board

-- On Component Side
Has gray connector with no wires on 10 pins near top of board.
Has Black Transformer for T-Stat circuit
Has NPS41020 on Blue relay
-- On Land Side
Tag with 234292 on it

Pic 3 - Original board with Gray Connector on pins

Pic 4 - Left is new board and right is original board

Pic 5 - New Control Board

-- On Component Side
Has NO connector on 10 pins near top of board.
Has Yellow Transformer for T-Stat circuit
Has W190-0036 on Blue relay
Has NPS41043 on Brown component
-- On Land Side
Tag with 388771 on it

After installing the new control board, the stove fired right up!