Electronic Control And Thermistor; No Heat Dry; Temp Assure; Heat Delay - Electrolux GLDB957JB series Service Manual

ELECTRONIC CONTROL AND THERMISTOR

There are three styles of electronic controls used in the
Precision Wash System dishwashers. There is a 9 pad
key, 10 pad key and a 12 pad key control. The 12 pad
key is the only one that has the display window for the
time display or the Code display which are:
LO low liquid in the Rinse Aid Dispenser
PF power failure has occurred
HO water heating display
CL close and latch the door
01-09 hours for delay start
The electronic control dishwashers use one thermistor
(instead of two thermostats) to control water temperature
during the various cycles. The thermistor is located
underneath the sump and is controlled by impulses
from the control board.

No Heat Dry

This selection allows the consumer to turn off the
heating element for the drying cycle. If not selected the
element will automatically come on for the dry cycle.

Temp Assure

"Temp Assure" is an automatic water heating function
that ensures that the water in the tub is heated to 140°F
(except for the China/Crystal cycle where the water
temperature 125°F in the main wash cycle and reaches

DISHWASHER LEVELING SYSTEM

The dishwasher is leveled with fout leveling legs and they are screwed into the bottom of the support frame.
There is a 3/16" hex head on top of the leg leveler to help make adjusting of the leg leveler easier by using a
socket on it.
130°F in the final rinse cycle). "Temp Assure" occurs
near the end of the third wash cycle and near the end of
the second rinse cycle. When the thermistor senses
that the water is cooler than 140°F, it will stat in this no
more than 10 minutes, then the control will advance on
into the cycle whether or not it reached 140°F. This is
designed to keep the dishwasher from running for too
long of a period trying to raise thewater temperature.

Heat Delay

"Heat Delay" is an optional function that must be selected
by the consumer (bypassed for China/Crystal cycle).
"Heat Delay" occurs near the end of the third wash cycle
and near the end of the second rinse cycle right after the
Temp Assure process. "Heat Delay" is controlled by the
Hi-Temp Wash and/or Hi-Temp Rinse touchpads. When
a consumer selects either one or both of these options,
the thermistor stops the cycle from continuing until
either the water reaches 144°F or until 10 minutes have
passed. After 10 minutes the cycle automatically starts
again. This allows the water to be heated and does not
stop the cycle indefinitely.

HIGH LIMIT THERMOSTAT

Located on the left rear tub bottom, the high limit
thermostat is used to prevent the tub from overheating
in the event of a component failure. The thermostat will
open at 200°F.
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