Scotsman C2648 - Inlet Water Solenoid Valve Testing; Indicator Lights Test; Ohmmeter Coil Resistance Test

C2648 Prodigy and Prodigy Plus Service Manual
January 2015
Page 52
This light will be ON when the Purge Valve is ON.
Inlet Water Solenoid Valve
Test using the controller’s indicator lights.
1. Shut unit off by holding the Off button for 3 seconds. Wait four minutes.
2. Push and release the On button, observe the Water Solenoid indicator light. After the unit drains the
reservoir, the inlet water valve will be powered to rell the reservoir. When it gets power, the indicator light
will be ON. If the water valve does not open to ll the reservoir when its indicator light is on, do a voltage
check.
3. Shut the unit down by holding the Off button in for 3 seconds.
4. Unplug the harness connection from the inlet water valve. Wait four minutes.
5. Push and release the On button to restart the machine. After the unit drains the reservoir, the inlet water
valve connection should receive full voltage. If it does, the inlet water valve should be replaced. If there is
no voltage, check voltage from the controller. The inlet water solenoid valve pin is 7.
Test using an ohmmeter.
Disconnect electrical power. Unplug coil from harness. Measure coil resistance. If open, replace the inlet water
solenoid.