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F. Diagnostic Charts
1. No Ice Production
No Ice Production - Possible Cause
1. Power Supply
2. Main Transformer
(208-230VAC/115VAC) (3 Phase
Only)
3. Water Supply
4. Fuse (SRK Control Box)
5. High-Pressure Switch (SRK)
6. Discharge Line Thermostat
(SRK)
7. Wire Harness
(From SRK to KMS)
8. Fuse (KMS Switch Box)
9. Control Switch
10. Control Transformer
(115VAC/10.5VAC)
11. Control Board
See "IV.B. Control Board Check"
12. Bin Control
See "IV.C. Bin Control Check and
Cleaning"
13. Fill/Refill or Harvest Water Valve a) Screen or orifice clogged.
14. Float Switch
See "IV.D. Float Switch Check
and Cleaning"
a) Off, blown fuse, or tripped breaker.
b) Not within specifications.
a) Voltage tap switch not set to proper voltage.
b) Coil winding open or shorted.
a) Water supply off or improper water pressure.
b) External water filters clogged.
a) Blown.
a) Dirty condenser.
b) Condensing unit fan(s) not operating.
c) Headmaster (C.P.R.) open.
d) Refrigerant overcharged.
e) Bad contacts.
f) Refrigerant lines or components plugged.
a) Ambient temperature too warm.
b) Compressor or compressor components faulty.
c) Defective.
d) Hot gas valves open.
e) Dirty condenser.
f) Condensing unit fan not operating.
a) Disconnected or loose connection.
a) Blown.
a) In "SERVICE" or "OFF" position.
b) Bad contacts.
a) Coil winding open or shorted.
a) In alarm.
b) Yellow "BC OPEN" LED on (bin full).
c) Defective.
a) Tripped with bin filled with ice.
b) Actuator does not move freely.
c) Defective.
b) Coil winding open.
c) Water valve open in freeze cycle.
a) Float does not move freely.
b) Defective.
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