Hoshizaki KMS-1401MLJ, Condensing Unit Models SRK-14J/3 F. Diagnostic Charts, No Ice Production

F. Diagnostic Charts

1. No Ice Production

No Ice Production - Possible Cause

1. Power Supply	a) Off, blown fuse, or tripped breaker.
	b) Not within specifications.
2. Main Transformer	a) Voltage tap switch not set to proper voltage.
(208-230VAC/115VAC) (3 Phase	b) Coil winding open or shorted.
Only)
3. Water Supply	a) Water supply off or improper water pressure.
	b) External water filters clogged.
4. Fuse (SRK Control Box)	a) Blown.
5. High-Pressure Switch (SRK)	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.
6. Discharge Line Thermostat	a) Ambient temperature too warm.
(SRK)
	b) Compressor or compressor components faulty.
	c) Defective.
	d) Hot gas valves open.
	e) Dirty condenser.
	f) Condensing unit fan not operating.
7. Wire Harness	a) Disconnected or loose connection.
(From SRK to KMS)
8. Fuse (KMS Switch Box)	a) Blown.
9. Control Switch	a) In "SERVICE" or "OFF" position.
	b) Bad contacts.
10. Control Transformer	a) Coil winding open or shorted.
(115VAC/10.5VAC)
11. Control Board	a) In alarm.
See "IV.B. Control Board Check"	b) Yellow "BC OPEN" LED on (bin full).
	c) Defective.
12. Bin Control	a) Tripped with bin filled with ice.
See "IV.C. Bin Control Check and
	b) Actuator does not move freely.
Cleaning"
	c) Defective.
13. Fill/Refill or Harvest Water Valve	a) Screen or orifice clogged.
	b) Coil winding open.
	c) Water valve open in freeze cycle.
14. Float Switch	a) Float does not move freely.
See "IV.D. Float Switch Check	b) Defective.
and Cleaning"

40