Hoshizaki MRH KM-600MAH KM-650MAH, MWH Low Ice Production - Possible Cause, Long Freeze Cycle

Low Ice Production - Possible Cause

		Long Freeze Cycle
1.	Evaporator	a) Scaled up, dirty.
2.	Float Switch	a) Scaled up, dirty.
	See "II.E. Float Switch Check
		b) Float sticking.
	and Cleaning"
		c) Defective switch.
3. Inlet Water Valve		a) Leaking by.
4. Hot Gas Valve		a) Erratic or open.
5. Condenser		a) Clogged.
6. Control Board		a) Float switch connection loose (K5).
	See "II.C. Control Board Check"
		b) Defective.
7. Refrigerant Charge		a) Low.
8. Thermostatic Expansion Valve		a) Bulb loose.
		b) Defective.
9.	Compressor	a) Inefficient or off.
10. Pump Motor		a) RPM too slow.
11.	Liquid Line Valve	a) Erratic or restricted.
12. Headmaster (C.P.R.)		a) Not bypassing.
	(remote models)

40