Scotsman ND550 - Manual (Page 35)

REMOVAL AND REPLACEMENT
Water Level
1. Unplug "water sen" connector from control
board.
2. Plug "water sen" connector from Scotsman
tester into circuit board.
a. Move "water" switch on tester to No Water
position. The No Water light on the circuit board
should go ON. If not, replace the circuit board.
b. Move the "water" switch on the tester to the
Water position. The No Water light on the board
should go OFF. If not replace the circuit board. If
the light does go off, replace the water level sensor.
LIGHT ON
WATER SENS
SWITCH TO
“NO WATER”
LIGHT OFF
SWITCH TO
“WATER”
ND550
December, 1988
Page 35