Scotsman NSE654 User Manual page 20

NSE654
SERVICE DIAGNOSIS:
Symptom
Water Leak
Excessive water use
Excessive ice meltage
Machine makes too much noise
Possible Cause
Drain plugged up
Tubing cracked
Condensation on drain tubing
Hose off
Reservoir cover off
Reservoir cracked
Evaporator water seal leaks
Water cooled model, water regulating
valve not adjusted properly.
Reservoir float valve leaks thru
Water cooled model, overcharged
with refrigerant
Water cooled model, condenser
coated with minerals
Bin drain clogged
Improper installation of drains, they
are connected.
Poor fit between bin door and door
frame
Evaporator coated internally with
minerals
Motor bearings dry
January 2000
Page 20
Probable Correction
Clean out drain
Replace tubing
Insulate tubing
Reattach hose
Return cover to reservoir
Replace reservoir
Check base of evaporator & drip pan.
If the seal leaks, shut off the water,
remove the auger, replace the water
seal. Check gear motor for water
infiltration.
Adjust to 245 PSIG discharge
pressure
Replace float valve or seat
Recover and weigh refrigerant. Weigh
in correct charge.
Acid clean water cooled condenser.
Clean out bin drain.
Drains must be separate.
Adjust or replace
Clean with Scotsman Ice Machine
Cleaner
Oil or replace motor