Test Procedures - Sensors - Scotsman C0530SR-1 Technical Manual

Test Procedures - Sensors

All electrical components in this ice machine can be diagnosed with a volt-ohmmeter.
Curtain Switch:
1. Test using the controller's indicator lights. Observe SW1 and SW2. Open and close the
curtain in question. When the curtain is opened, the SW light will be ON. When the curtain gets
to within a half inch of closing (at the switch) the SW light will go OUT.
2. Test with an ohmmeter. Disconnect electrical power. Open the control box cover. Unplug the
curtain switch lead from the controller. Connect an ohmmeter to the leads of the switch. Open
and close the curtain. When the curtain is closed, the switch is closed and there will be
continuity. When the curtain is open, the switch is open and the circuit will be open.
3. Test the controller's curtain switch circuit by jumping the connectors on J1 or J2 together.
Reconnect electrical power. When jumped, the matching SW light will go out. When unplugged
or open, the SW light will be ON.
Curtain Switch
Indicator Lights
Light is ON when
curtain is OPEN
Single curtain
models have one
indicator light ON
all the time.
September 2006 Page 57
Curtain
Switch