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No Ice Production - Possible Cause
Freeze Cycle
1. Control Board a) No power to compressor delay relay circuit (5VDC) or not
reading circuit.
b) Compressor relay defective
2. Start Relay a) Defective.
3. Start Capacitor a) Defective.
4. Compressor a) Internal protector.
b) Motor winding.
c) Mechanical failure.
5. High-Pressure Switch Activates a) Dirty condenser.
b) Ambient temperature too warm.
c) Fan motor not operating.
d) Refrigerant overcharged.
e) Defective.
f) Refrigerant lines or components restricted.
6. Fan Motor a) Capacitor defective.
b) Motor winding.
c) Bearing worn out or locked rotor.
7. Evaporator a) Dirty.
b) Damaged or defective.
8. Thermostatic Expansion Valve
(TXV)
a) Bulb loose.
b) Operating erratically.
9. Refrigerant Charge a) Low.
10. Drain Valve a) Dirty, leaking by.
b) Defective coil.
c) Defective control board.
11. Water System a) Water leaks.
Rell
1. Water Supply a) Off.
2. Control Board a) No power to oat switch (5VDC) or not reading oat switch
condition.
b) No power to inlet water valve (24VAC).
3. Float Switch a) Float does not move freely.
b) Defective.
4. Inlet Water Valve a) Clogged or defective.
Shutdown
1. Bin Control a) Large balance plate sticking.
b) Microswitch defective.
2. Control Board a) Defective.