Electrolux GLDB957JB series Service Manual page 33

Check power
to dishwasher.
Defective
transformer.
Measure the voltage drop
between terminals PT01 &
PS04-10 of the control board.
12 VAC
Remove the touch pad ribbon
from the board, clean the
ribbon tail, reinstall the ribbon.
Check the dishwasher
operation. If the dishwasher
does not operate replace the
control board.
Dishwasher is Completely
With the door latched remove and
reapply electrical power to the
dishwasher. Does the HI-TEMP
WASH & NO HEAT DRY LEDs
Zero
Measure input voltage
to the transformer.
Zero
Measure output voltage
from the transformer.
Measure the voltage drop
across the thermistor.
5 VDC
Zero
Defective
line door
switch.
Inoperative
FLASH?
No
120 VAC
12 VAC
Measure the voltage drop
between terminals PS04-2 &
PS04-1 of the control board.
12 VAC
Defective
control
board.
Page 32
Yes
Go to "Some
Functions Will Not
Program" flow
chart.
Zero
Zero
Open wiring
between the
transformer
& board.