Bradford White D Series Service Manual page 34

Control board replacement
Step 1: Disconnect Power
23
Depress
plastic
tabs
Step 3: To remove board, tilt control panel to the right
and slide control hook tabs from slots in control panel.
25
Slots in
control panel
Unhook tabs
from control
panel slots
34
DANGER
120 volt exposure. To avoid personal injury,
unplug while performing this procedure.
SERVICE PROCEDURE D24-IV
Control Board Replacement
Step 2: Unplug wire connections from board.
24
To remove lower sensor
Remove clip, pull sensor out.
26
When replacing lower sensor, make sure
sensor is fully inserted into the well and
securely held by the clip on the well groove.
Page 34
Wire connections
Remove clip
Pull out sensor
IMPORTANT
(see photo 25)