Dexter Laundry Wn0600ea-13en2x-sskcs-usx, Parts & Service Manual

Page: 138 / 159

Part # 8533-097-001 11/16
138
Steam Valve Troubleshooting
If the valve does not engage in a heated bath:
1) Check the calibration switch is set to run position.
2) Check that I/O board jumpers are changed to the level side, Jumper must start closest to
level input light and open pin will be towards door input lights.
3) Check actual water temperature is less than programmed temperature
4) Check the temperature sensor for open circuit or shorted
5) Check low level contacts on the pressure switch not closing
6) Check steam valve coil
7) Check the wiring between temperature board and sensor at all connectors and inspect wires for
any damage.
If the temperature control board is removed, the programmed temperature values are retained in all baths
and the water valves to fill that bath are chosen based on the programmed temperature.
Steam Heated Washer Schematics
Control voltage (115VAC / 60hz) is used to power the steam valve coil. The supply voltage will intiate
from the I/O board Terminal number #6 (wht/blue wire) to the steam valve coil when heat is being called
for by temperature board. The neutral will be supplied from the (blu/yel) wire connected to AC neutral
terminal on the I/O board. The valve will get a signal when the pressure switch reaches low level. 115 Vac
will operate steam valve until programmed temperature is reached.
Please remember you will lose a cold water dispenser flush signal as this is now the operating signal track
on the I/O PCB board . It is marked on the lettering shield on the top of the I/O board.