34
Ice Purge Cycle
1. Control Board
a) No power to gear motor.
b) No power to compressor control relay.
2. Gear Motor
a) Blown fuse.
b) Internal protector open.
c) Defective.
Freeze Cycle
1. Compressor Control Relay/Gear
Motor Protect Relay
a) No voltage from gear motor.
b) Defective.
2. Control Board
a) No power to pump-down solenoid valve or not reading compressor
control relay/gear motor relay condition. Defective.
3. Pump-Down Solenoid Valve
a) Defective.
4. Control Low-Pressure Switch
a) Refrigerant pressure too low.
b) Out of adjustment or defective.
5. Safety Low-Pressure Switch
(manual reset)
a) Refrigerant pressure too low.
b) Defective.
6. High-Pressure Switch
a) Dirty condenser.
b) Fan(s) not operating.
c) Ambient temperature too warm.
d) Refrigerant overcharged.
e) Refrigerant line or component restricted.
7. Magnetic Contactor
a) Defective.
8. Condensing Unit Fan Motor(s)
a) Defective capacitor.
b) Fan blade binding.
c) Defective.
9. Compressor
a) Start or run capacitor defective.
b) Start relay defective.
c) Defective.
10. Refrigerant Line
a) Gas leaks.
b) Refrigerant line or component restricted.
11. Thermostatic Expansion Valve
(TXV) (not adjustable)
a) Defective.
12. Evaporator
a) Dirty.
b) Damaged or defective.
13. Headmaster (C.P.R.)
a) Not operating properly and liquid line temperature too warm.
14. Drain Valve
a) Dirty, leaking by.
b) Defective.
15. Water System
a) Water leaks.
Summary of Contents for MODULAR CUBELET SERENITY SERIES FS-1022MLH-C
Page 62: ...62 B Wiring Diagram 1 Icemaker...
