Service Diagnosis - Scotsman MCM1462R Service Manual

MCM1462R
SERVICE DIAGNOSIS: Water
SYMPTOM
No ice is made
Cubes are not uniform in shape
Long Freeze Cycle
Makes thick ice/freezes up
Cubes too large
Low Capacity
Unit runs out of water
POSSIBLE CAUSE
Inlet water valve will not open or is
dirty
No water being pumped over
evaporators.
Water inlet valve leaks thru at high
rate
Water distributors are dirty
Inlet water valve leaks through
See electrical/adjustment
Water inlet valve restricted
Low water pressure
Sump covers out of position
Inlet water valve leaks through
See electrical/adjustment
Incoming water very warm
Lack of water
Reservoir leaks
Inlet water valve restricted
Short harvest cycle
Water pressure too low
April, 1993
Page 22
PROBABLE FIX
Clean inlet screen, check coil,
replace valve if required
Check pump motor, replace pump if
motor will not run.
No water in reservoir, check inlet
water valve, check reservoir for leak.
Replace inlet water valve
Clean water system
Replace inlet water valve
See electrical/adjustment
Clean or replace valve
Check water filter or supply
Re-position sump covers
Replace inlet water valve
See electrical/adjustment
Check water temperature to building
See unit runs out of water
Repair leak
Clean or replace valve
Adjust timer
Check supply