4.3 Operation
4.3.1 Sensors
4.3.1.1
Water / load sensor
Using the pressure switch, washers determine at predetermined
points during the 1
st
fill if they need more water. Once the laundry has
absorbed all the water it can, the water level rises, causing the
pressure (in the pressure chamber) to increase to the level the
pressure switch doesn’t provide more water.
This water saving feature is needed due to different laundry water
absorption levels and load sizes.
4.3.1.2 Digital
temperature
sensor
Along with the washer control, the NTC monitors the water
temperature and controls how long the heating element is on, insuring
proper temperatures.
4.3.1.3 Suds
sensor
Using the pressure switch and motor speed, washers determine
during the start of the 1st rinse if there are excessive suds and add 2
rinses (if necessary).
With
oversudsing
(or
suds lock
) where washers can’t remove the
excessive sudsing, washers won’t spin and laundry will be wet.
4.3.1.4
Unbalanced load sensor
During final spin, washers monitor motor speed changes to determine
if loads are unbalanced. If so, washers stop, adjust loads and reduce
spin speeds up to 15 times to allow wash cycles to finish.
With excessively unbalanced loads that can’t be balanced, washers
will stop during spin cycles and laundry will be wet.
Load
distribution
Unbalance
Spin speed
(rpm)
# of balancing
attempts
Spinning
profile
Good
Small
1200 (max.)
4
I
Uneven
Medium
1000 (reduced)
7
II
Bad
Large
800 (low)
14
III
None
Dangerous
0 (no spinning)
15
IV
Spin speed
(rpm)
…max. 15 trials…
I
II
III
IV
1200
1000
800
600
400
200
0
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