4.2
Operation
4.2.1 Water circulation
The circulation pump pumps water from the sump through a triple
filter system to the heater. When water enters the heater, a flow
switch determines water is present and allows the heater to be
activated. As water flows, it’s heated until it reaches the pre-set
temperature determined by the cycle. Once it leaves the heater,
it flows through the sump into the upper and lower spray arms.
The aqua sensor, drain pump, NTC, Hi-limit and backflow valve
are near the heater under the sump. The aqua sensor senses
water cleanliness – dishwashers add or subtract rinses as
needed. The NTC senses water temperature. The Hi-limit shuts
off the heater if the water gets too hot. The backflow valve
prevents waste water from entering the dishwasher.
4.3
Serial label (warranty information)
The serial label, located on the right side of the inner door,
contains the dishwasher model, serial and index (KI) #’s.
Aqua
sensor
NTC
Hi-limit
4.3.1 Understanding the FD # (customer serial #)
Heating
element
To upper
spray arm
This is the serial # used for customer and warranty repairs,
commonly known as the “FD #”. It’s located under the model #.
FD8303 00011
The FD # shows the production date:
Backflow
valve
Circulation
pump motor
•
The first 2 #s represent the year: 83 = 2003
•
The next 2 #s represent the month: 03 = March
•
The next 5 #s represent the unit made that month: 00011 =
11th SHY99A05UC made that month
Drain pump
cover
Sump
Drain pump
Impeller Seal
702_58300000148618_ara_en_a
Page 26 of 42
To lower
spray arm
