Follett Symphony 25CI400A Installation, Operation And Service Manual page 33

Problem
Compressor cycles
intermittently.
System status: gearmotor
and fan motor run.
Unit runs but not making ice.
System status: compressor,
gearmotor & fan motor
running.
Compressor and fan motor
will not run.
Gearmotor runs.
Intermittent noises from
evaporator.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
Indicators
1. Compressor start relay in wrong position.
2. High pressure cutout open due to high head
pressure.
3. Clogged or dirty air fi lter or condenser coil.
4. Improper ventilation.
5. Defective compressor.
1. Clogged or dirty air fi lter or condenser coil.
2. Compressor not pumping.
3. Low refrigerant charge.
1. Compressor switch in OFF position.
2. No output on compressor and fan motor terminals
on control board.
3. Failed fan motor causes high pressure cut-out to
open.
1. Mineral build-up on evaporator surface.
Corrective Action
1. Position relay with arrow or word "top" .
2. Check discharge pressure and adjust water regulator
valve.
3. Clean or replace fi lter, clean condenser coil.
4. Provide inlet and exhaust air provisions per Follett ice
machine installation manual.
5. Replace compressor.
1. Clean or replace fi lter, clean condenser coil.
2. Replace compressor.
3. Check for leaks; repair, evacuate, and weigh in correct
charge.
1. Turn compressor switch on.
2. Replace control board.
3. Replace fan motor.
1. Clean evaporator with liquid ice machine
cleaner.
33