Hoshizaki SRH/3 KM-2100SWH3, SWH/3 Diagnostic Tables, No Ice Production Possible Cause

G. Diagnostic Tables

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.
(3 phase model)
	b) Coil winding open or shorted.
3. Fuse (Control Box)	a) Blown.
4. Thermostatic Bin Control	a) Tripped with bin filled with ice.
See "II.D. Bin Control Check"
	b) Ambient temperature too cool.
	c) Set too warm.
	d) Bulb out of position.
	e) Open contacts, defective.
5. Control Switch	a) In "OFF" or "WASH" position.
	b) Bad contacts.
6. High-Pressure Switch	a) Dirty condenser.
	b) Fan motor not operating.
	c) Refrigerant overcharged.
	d) Bad contacts.
	e) Refrigerant lines or components plugged.
7. Control Transformer	a) Coil winding open or shorted.
(115VAC/10.5VAC)
8. Control Board	a) In alarm.
See "II.C. Control Board Check"
	b) Yellow "BC OPEN" LED on (bin full) ("G" control board).
	c) Defective.
9. Water Supply	a) Water supply off or improper water pressure.
	b) External water filters clogged.
10. Inlet Water Valve	a) Screen or orifice clogged.
	b) Coil winding open.
	c) Water valve open in freeze cycle.
11. Float Switch	a) Float does not move freely.
See "II.E. Float Switch Check
	b) Defective.
and Cleaning"
12. Compressor	a) Compressor relay/magnetic contactor contacts bad or coil winding
	open.
	b) Start capacitor or run capacitor defective (single phase model).
	c) Internal protector open.
	d) Start relay contacts bad or coil winding open (single phase model).
	e) Compressor defective.
13. Hot Gas Valve	a) Closed in harvest cycle.
	b) Open in freeze cycle.
14. Thermistor	a) Loose, disconnected, or defective.
See "II.F. Thermistor Check"

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