Scotsman C2648 - Manual (Page 51)

C2648 Prodigy and Prodigy Plus Service Manual
January 2015
Page 51
This light will be ON when the liquid line solenoid has power.
Liquid Line Solenoid
Test using the controller’s indicator lights.
1. Put the controller into test mode (depress Off for 3 seconds then depress Clean for 3 seconds). At the end
of the test cycle, the liquid line valve will be powered and the Condenser Fan motor indicator light will be
on. The liquid line valve should be open at that time.
2. If it is not, repeat the test but check the voltage to the liquid line valve coil, it must receive full voltage at the
liquid line lead connection at the end of the test.
3. If there is voltage and the valve does not operate, replace the valve coil. If there is no voltage, check the
controller high voltage harness connection. The liquid line solenoid lead is the top wire.
4. Check voltage at the end of the test, when the Condenser Fan indicator light is On.
Note: high voltage power is supplied to the bottom pin from the contactor line. Refer to the machine
wiring diagram as needed.
Test using an ohmmeter.
Disconnect electrical power. Unplug liquid line coil from harness. Measure liquid line coil resistance. If open,
replace the liquid line valve coil.