Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki F-1000MWF/-C, F-1000MAF/-C, F-1000MLF/-C, F-1000MRF/-C Problem, Possible Cause, Remedy

Models: F-1000MWF/-C F-1000MRF/-C F-1000MLF/-C F-1000MAF/-C

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	PROBLEM		POSSIBLE CAUSE				REMEDY
[4]	Water has been	a)	Gear Motor Fuse	1.	Blown Fuse.	1.	See "3. [3]." Find out
	supplied, Fan Motor		(BUSSMAN GMD				the cause and replace
	starts, but Gear		1.5A)				the Fuse.
	starts, but Gear
	Motor and
	Motor and	b)	Thermal Protector	1.	Bad contacts.	1.	Check for continuity
	Compressor will not	b)	Thermal Protector	1.	Bad contacts.	1.	Check for continuity
	Compressor will not		(Gear Motor)				and replace.
	start.
[5]	Gear Motor and	a)	Pressure Switch	1.	Dirty Air Filter or	1.	Clean.
	Compressor start				Condenser.
	but operate
	but operate			2.	Ambient or	2.	Get cooler.
	intermittently.				condenser water
					temperature too
					warm.
				3.	Condenser water	3.	Check and get
					pressure too low or		recommended
					off. (Water-cooled		pressure.
					model only)
				4.	Water Regulating	4.	Adjust it lower.
					Valve set too high.
					(Water-cooled model
					only)
				5.	Fan not rotating.	5.	See "3. [1] a) Fan
							Motor."
				6.	Refrigerant	6.	Recharge.
					overcharged.
				7.	Refrigerant line or	7.	Clean and replace
					components		drier.
					plugged.
				8.	Bad contacts.	8.	Check for continuity
							and replace.
				9.	Loose connections.	9.	Tighten.
[6]	Gear Motor starts,	a)	X2 Relay on Control	1.	Bad contacts.	1.	Replace.Check for
	but Compressor will		Timer				continuity and replace.
	not start or operates			2.	Coil winding opened.	2.	Replace Timer.
	intermittently.
	intermittently.	b)	Starter	1.	Bad contacts.	1.	Check for continuity
							and replace.
				2.	Coil winding opened.	2.	Replace.
				3.	Loose Connections.	3.	Tighten.
		c)	Start Capacitor or	1.	Defective.	1.	Replace.
			Run Capacitor
		d)	Compressor	1.	Loose connections.	1.	Tighten.

				2.	Motor winding	2.	Replace.
					opened or grounded.

				3.	Motor Protector	3.	Find out the cause of
					tripped.		overheat or
							overcurrent.
		e)	Power Supply	1.	Circuit Ampacity too	1.	Install a larger-sized
					low.		conductor.
[7]	Gear Motor and	a)	Refrigerant Line	1.	Gas leaks.	1.	Check for leaks with a
	Compressor start,						leak detector. Reweld
	but no ice is						leak, replace drier and
	but no ice is						charge with
	produced.						charge with
	produced.						refrigerant. The
							amount of refrigerant
							is marked on
							Nameplate or Label.
				2.	Refrigerant line	2.	Replace the clogged
					clogged.		component.

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Hoshizaki F-1000MWF/-C, F-1000MAF/-C, F-1000MLF/-C, F-1000MRF/-C service manual Problem, Possible Cause, Remedy

Contents

MODEL MODULAR FLAKERF-1000MAF/-C F-1000MWF/-C F-1000MRF/-C F-1000MLF/-C HOSHIZAKIAttn HOSHIZAKI Technical Support Department Phone 1-800-233-1940 Technical ServiceComplete and detailed explanation of the problem HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GACONTENTS VI. REMOVAL AND REPLACEMENT OF COMPONENTS IV. ADJUSTMENT OF COMPONENTS1. ADJUSTMENT OF WATER REGULATING VALVE V. SERVICE DIAGNOSISF-1000MAF I. SPECIFICATION 1. ICEMAKERF-1000MWF F-1000MRF F-1000MLF F-1000MAF-C F-1000MWF-C F-1000MRF-C F-1000MLF-C URC-6F 2. CONDENSER UNITAMBIENT CONDITION SPECIFICATIONS MODEL URC-6FEXTERIOR DIMENSIONS W x D x H REFRIGERANT CHARGE WEIGHT CONNECTIONS REFRIGERANT ELECTRICAL CONDENSER HEAD PRESSURE CONTROLFlush Water Valve Control Box Gear Motor II. GENERAL INFORMATION 1. CONSTRUCTIONF-1000MAF/-C Control Water Valve Bin Control Ice Chute Evaporator Expansion ValveFlush Water Valve Control Box Gear Motor F-1000MWF/-CWater Supply Inlet Junction Box Water Regulator Compressor Drier Control Water Valve Bin Control Ice Chute Evaporator Expansion ValveFlush Water Valve Control Box Gear Motor F-1000MRF/-CWater Supply Inlet Junction Box Compressor Receiver Tank Drier Control Water Valve Bin Control Ice Chute Evaporator Expansion ValveControl Water Valve Bin Control Ice Chute Evaporator Expansion Valve F-1000MLF/-CWater Supply Inlet Junction Box Hot Gas Valve Solenoid Valve Heat Exchanger2. CONTROL BOX LAYOUT F-1000MAF/-CGEAR MOTOR CONTROL TIMER F-1000MWF, F-1000MRF/-CFLUSH FLUSH SWITCH ICE POWER SWITCH FUSE FUSE GEAR MOTOR FLUSH TIMERCONNECTOR GEAR MOTOR PROTECT RELAY CONTROL TIMERF-1000MAF/-C III. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERATION CIRCUITF-1000MWF/-C F-1000MRF/-C F-1000MLF/-C F-1000MAF/-C, F-1000MWF/-C, F-1000MRF/-C 2. WIRING DIAGRAMSF-1000MLF/-C 3. SEQUENCE OF ELECTRICAL CIRCUIT b When Reservoir has been filled, Gear Motor starts immediately c Compressor starts about 60 sec. after Gear Motor starts Page e Low Water Except Water-cooled Model Page Page h When Flush Timer operates for 15 min. every 12 hours Page Page 4. TIMING CHART Miswiring. Circuit Protect Relay operatesProper wiring. The unit starts 150 sec 1 sec60 sec 1. CIRCUIT PROTECT RELAY 2. WATER LEVEL UPPER 3. FLOAT SWITCH LOWER F-1000MAF 5. PERFORMANCE DATAF-1000MWF F-1000MRF F-1000MLF F-1000MAF-C F-1000MWF-C F-1000MRF-C F-1000MLF-C 1. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY IV. ADJUSTMENT OF COMPONENTSPOSSIBLE CAUSE V. SERVICE DIAGNOSISPROBLEM 1. NO ICE PRODUCTIONPROBLEM POSSIBLE CAUSEREMEDY REMEDY PROBLEM2. LOW ICE PRODUCTION POSSIBLE CAUSEREMEDY 3. OTHERSPROBLEM POSSIBLE CAUSEb REFRIGERANT RECOVERY F-1000MLF ONLY VI. REMOVAL AND REPLACEMENT OF COMPONENTS1. SERVICE FOR REFRIGERANT LINES a REFRIGERANT RECOVERY EXCEPT F-1000MLF-C2. BRAZING DANGER 3. REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT 4. REMOVAL AND REPLACEMENT OF DRIER 5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE Page Page AUGER 8. REMOVAL AND REPLACEMENT OF EVAPORATOR ASSEMBLYCUTTER EXTRUDING HEADGEAR MOTOR BEARING-LOWER AND MECHANICAL SEAL30 Turn on the power supply 27 When replacing the Evaporatorc Check for leaks using nitrogen gas 140 PSIG and soap bubbles 28 Move the Flush Switch to the “ICE” positionSocket Head Cap Screw Evaporator Washer Socket Head Cap Screw Barrier Auger Mechanical Seal O-ring Bearing Lower Bolt WasherCoupling - Spline Rubber O-ring Nylon Ring Bolt Washer Cutter Extruding Head Washer10. REMOVAL AND REPLACEMENT OF CONTROL WATER VALVE 9. REMOVAL AND REPLACEMENT OF FAN MOTOR11. REMOVAL AND REPLACEMENT OF FLUSH WATER VALVE 1. PREPARING THE ICEMAKER FOR LONG STORAGE VII. MAINTENANCE AND CLEANING INSTRUCTIONS3 Close the Water Supply Line Shut-off Valve 1 Turn off the power supply and wait for 3 minutes2 Turn on the power supply and wait for 20 seconds Water-cooled Models2. CLEANING INSTRUCTIONS Page 16 Move the Flush Switch to the “ICE” position STEP 6 Move the Flush Switch to the “ICE” position11 Move the Flush Switch to the “ICE” position 14 Turn off the power supply when the Gear Motor starts16 Flush out any solution from the Storage Bin If the solution is left on these parts, they will rust13 Turn on the power supply and run the icemaker 14 Turn off the power supply after 30 minutes3. MAINTENANCE 4 Condenser Except water-cooled model 3 Air Filter Air-cooled model only