Scotsman CME2006R - Manual (Page 31)

Service Diagnosis: Diagnostic Light Analysis
Problem or Symptom Possible Cause Probable Correction
Machine is off Bin is full Use some ice
Bin thermostat is closed Check thermostat, unplug the connection to
the controller at terminal 7 and wait 4
minutes. If the machine starts, the thermostat
was closed and needs to be adjusted or
replaced. If the Bin Full light does NOT go out
check the ice sensors. See next page bottom.
Power is off, check Lights. If all Lights are out, check power supply,
restore power if off
Transformer is open If all Lights are out and there is power, check
transformer output for 24 vac
Unit manually switched off Push and release Freeze button
Unit has Shut Down Check for Refrigeration or Water Error
Unit is off on a Water
Error Water supply inadequate Check water Light, if the Light blinks 2 times
and repeats, check the water inlet valve.**
Water pump malfunction Check that pump hose is attached and if
pump is plugged in and working.
Water level sensor may
have failed. Check float stem, reset machine. If it will not
reset or gives another water error and all else
is OK, replace the water level sensor.
Unit is off on a
Refrigeration Error Low discharge or long
freeze cycle Check refrigeration Light. If the Light is
glowing, there is a probable refrigeration
problem - Check fan motor, harvest bypass
valve and/or controller.
Harvest problem Check refrigeration Light. If the Light blinks
once and repeats, look for a harvest problem.
where some cubes were sensed.**
Check refrigeration Light. If the Light blinks
two times and repeats, look for a harvest
problem. - no cubes sensed**
High Discharge Temp Check refrigeration Light. If the Light blinks 3
times and then repeats, check for a reason
for high discharge temperatures - fan motor
hot ambient, or blocked headmaster.
Unit does not go into
harvest - exceeds
maximum freeze time Push and release Off button. Push and
release Freeze button. Check operation.
Push cube size float down, check operation.
Exceeds max harvest time Check for cause of long harvest cycle**
Unit runs and both
Diagnostic lites are ON Temperature sensors out
of range Replace the temperature sensor set (water
and discharge).
Same, only 1 light on Reservoir temp. wrong Check water temp. and sensor.
* Machine may be reset by pushing and releasing the Off button, then pushing and releasing the
Freeze button. ** See following pages
CME2006R
July 1998
Page 31