Hoshizaki F-300BAF service manual Low Ice Production

Page 31

Problem

Possible Cause

 

Remedy

 

 

 

 

 

 

e) Compressor

1. Loose connections.

1.

Tighten.

 

 

 

 

 

 

 

2. Motor winding opened

2.

Replace.

 

 

or grounded.

 

 

 

 

 

 

 

 

 

3. Compressor locked

3.

Replace compressor.

 

 

and motor protector

 

 

 

 

tripped.

 

 

 

 

 

 

 

 

f) Power Supply

1. Circuit ampacity too

1.

Install a larger-sized

 

 

low.

 

circuit.

 

 

 

 

 

[5] Gear motor and

a) Refrigerant Line

1. Gas leaks.

1.

Check for leaks with a

compressor start, but

 

 

 

leak detector. Replace

no ice is produced.

 

 

 

drier and charge with

 

 

 

 

refrigerant. Refrigerant

 

 

 

 

charge is marked on

 

 

 

 

nameplate or rating label.

 

 

 

 

 

 

 

2. Refrigerant line

2.

Replace the clogged

 

 

clogged.

 

component.

 

 

 

 

 

2. Low Ice Production

Problem

Possible Cause

 

Remedy

 

 

 

 

[1] Low ice production.

a)Refrigerant Line

1. Gas leaks.

1. See "2. [5] a) Refrigerant

 

 

 

Line."

 

 

 

 

 

 

2. Refrigerant line

2. Replace the clogged

 

 

clogged.

component.

 

 

 

 

 

 

3. Overcharged.

3. Recharge.

 

 

 

 

 

b)High-Side Pressure Too

1. Dirty air filter or

1. Clean.

 

High

condenser.

 

 

 

 

 

 

 

2. Ambient or condenser

2. Reduce temperature.

 

 

water temperature too

 

 

 

warm.

 

 

 

 

 

 

 

3. Condenser water

3. Check and get recom-

 

 

pressure too low or off.

mended pressure.

 

 

[water-cooled model

 

 

 

only]

 

 

 

 

 

 

 

4. Fan, slow rpm.

4. See "3. [1] a) Fan Motor".

 

 

 

 

 

 

5. Water regulating valve

5. Clean.

 

 

clogged. [water-cooled

 

 

 

model only]

 

 

 

 

 

 

c) Expansion Valve (not

1. Low-side pressure too

1. Replace.

 

adjustable)

low.

 

 

 

 

 

 

 

2. Low-side pressure too

2. See if expansion valve

 

 

high.

bulb is mounted properly,

 

 

 

and replace the valve if

 

 

 

necessary.

 

 

 

 

31

Image 31
Contents Self-Contained Flaker Model 300BAF Hoshizaki AMERICA, INC Contents Upper Bearing Wear Check 300BAF Specifications IcemakerII. General Information Construction Ice Making Unit Auxiliary Code K-2 and L-0 Control Box LayoutAuxiliary Code M-1 and Later Auxiliary Code L-1 and M-0Solid-State Timer Board Control Timer BoardIce Production Check Sequence of Operation300BAF, F-500BAF Sequence Flow Chart and Component Operation 300BAF Auxiliary Code K-1 and Earlier Wiring DiagramAuxiliary Code K-2 and L-0 Auxiliary Code L-1 and M-0 Auxiliary Code M-1 and Later Sequence of Electrical Circuit Ice Purge Cycle Freeze Cycle Shutdown Cleaning Flush Switch Low Water Safety Spout Safety Switch High Pressure Switch ICE Production Performance DataIV. Service Diagnosis Diagnostic Procedure Page No Ice Production Diagnostic ChartsProblem Possible Cause Remedy Low Ice Production Other Evacuation and Recharge R-404A Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant RecoveryBrazing Removal and Replacement of Compressor Removal and Replacement of Expansion Valve Removal and Replacement of DrierPage Removal and Replacement of Evaporator Assembly Components Upper Bearing Wear Check Removal and Replacement of CutterRemoval and Replacement of Auger Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator Page Removal and Replacement of Gear Motor 6b. Lower HousingRemoval and Replacement of Inlet Water Valve Removal and Replacement of Fan MotorRemoval and Replacement of Flush Water Valve Page Cleaning Procedure VI. Cleaning and MaintenanceCleaning and Sanitizing Instructions Cleaning SolutionSanitizing Solution Sanitizing Procedure Final Sanitizing Procedure InitialPage Air Filter MaintenanceStainless Steel Exterior Storage Bin and ScoopPreparing the Icemaker for Long Storage