Dexter Laundry T350, Parts & Service Manual

Page: 129 / 168

129
gent dispenser flushes the detergent into the tub for 20 seconds. This is accomplished when 24VAC travels
through the orange wire to the H2 hot water valve solenoid. During the machine fill, a 5VDC signal is sent
on the red wire from the P5 connection of the main control PCB to the pressure switch contact and returns
on the yellow and orange wires to the P5 connection of the main control PCB. When the water level in the
basket reaches the preset level pressure, the switch moves the switch contacts to the full or open posi -
tion. This causes the main control PCB to signal the relay PCB to shut off the water valve coils.
Wash Circuit
Once the machine has achieved it’s water level, the wash basket will continue to tumble one direction for
12 seconds, pause, and then reverse direction for 12 seconds. The time on the front display will count
down as the bath progresses. The time of the bath is programmable up 15 minutes per bath.
NOTE : When programming cycles, the wash bath must be programmed for 3 minutes or more.
Drain
When the program bath time ends the main control PCB signals the relay PCB to remove 24 VAC power
from brown/yellow wire at P17 going to the drain valve. The normally-open, spring-loaded drain valve
opens allowing water to exit the machine. This resets the pressure switch back to an empty level and
restores the 5VDC connection through the pressure switch from the red wires to the orange and yellow
wires.
Rinse 1 & 2
For Rinse 1 & 2,3,4, the rinse LED will illuminate, the drain valve will receive 24VAC and close. The basket
will fill and tumble the same as the wash bath for the programmed time. The rinse water temperatures are
programmable and factory default is cold.
Final Rinse Circuit
The final rinse LED will illuminate, the drain valve will receive 120VAC and close. The basket will fill and
tumble the same as the previous baths for the programmed time. The final rinse water temperatures are
programmable.
NOTE: When programming cycles, the final rinse bath must be programmed and cannot be set for less
than 3 minutes. Also at the beginning of the final rinse bath, the main control PCB will signal the relay PCB
to send 24V to the P-19 connector on the white/blue wire to the C2 cold water valve for 20 seconds to
flush the fabric softener dispenser.
Spin Circuit
The spin LED will illuminate and the main control PCB sends a signal to the variable frequency drive via
the data cable at P6 to VFD RJ-11. The rotation as viewed from front during spin will be counter-clockwise.
The time of the spin cycle can be programmed.
Note: The final spin must be programmed into the final rinse bath and must be programmed for 1 minute
or more.
The washer will then tumble for 45 seconds to let the clothes shake loose from the basket and then stop.
Part # 8533-104-001 1/18