Verify Control Board Is Configured As An Sd3; Error Code Chart; Troubleshooting Table - STERO SD3 Series Service And Parts Manual

NOTE: When troubleshooting, always check for
correct voltage, current, and resistance as specified
by the machine's data plate. Before troubleshooting
machine, verify that the control board assembly is
programmed to operate as an SD3.
VERIFY CONTROL BOARD is
CONFIGURED as an SD3
1. Turn dishwasher off.
2. Press the ON key on the switch membrane
keypad.
A. Control board/display will begin a self-
check. When self-check completes,
machine type will be displayed briefly.
Error Code
E3
E1 - After wash cycle.
NOTE: Shows Pd
while washing
E2
E6
Ed
EE
EF
P1
P2
P3

TROUBLESHOOTING TABLE

NOTE: Before troubleshooting machine,verify that
control board assembly is programmed to operate as
SD3 Series - TROUBLESHOOTING

ERROR CODE CHART

ERROR CODE CHART
Explanation
1:15 cycle no rinse - E1
Water did not reach the float during a
fill within 150 seconds.
Float and temperature thermistors
could not be detected.
Slow Leak. Machine enters fill cycle
three times with 35 minutes of initial
fill.
Booster did not reach temperature
within eight minutes after initial fill.
Severe internal control error.
Open or shorted wash tank
thermistor.
Open or shorted rinse thermistor.
Open or shorted booster thermistor.
1)
2)
3. If machine type programmed into control board is
other than machine type on data plate, the control
board must be programmed before continuing.
Refer to CONTROL BOARD PROGRAMMING
as outlined in SERVICE PROCEDURES AND
ADJUSTMENTS.
4. Check machine operation to see if problem still
exists.
Ensure drain lever is closed and the standpipe is
properly seated. Verify float is clear of debris.
Ensure the incoming water valve is open and water
flow/pressure is 20psi (+/- 5psi).
Verify operation of float and temperature
thermistors. Ensure thermistor and door switch plug
is connected to J2 on control board.
Ensure drain lever is closed and the standpipe is
properly seated with the O-ring clear of food soils
Check to see that booster power is on. Check that
the water heater is on and supplying proper hot
Check thermistor and switch thermistor and wiring.
Check rinse thermistor and wiring.
Check booster thermistor and wiring.
an SD3. Refer to CHECKING CONTROL BOARD
CONFIGURATION as oulined in this section.
Page 35 of 37
AP (plain - external booster).
AH (hot - self-contained booster).
Troubleshooting
or other debris.
water (min of 110°F).
Control board malfunction.
F45576 (1015)