Hoshizaki FD-1001MAH(-C), FD-1001MLH(-C), FD-1001MRH(-C), FD-1001MWH(-C) service manual - page 5

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IV. Service Diagnosis ..........................................................................................................58
A. Ice Production Check ..................................................................................................58
B. Diagnostic Procedure .................................................................................................58
C. Control Board Check ..................................................................................................61
D. Bin Control Check .......................................................................................................66
1. Infrared Sensor Check ..........................................................................................66
. Mechanical Bin Control Check ..............................................................................67
E. Float Switch Check and Cleaning ...............................................................................69
1. Float Switch Check ................................................................................................69
. Float Switch Cleaning ............................................................................................69
F. Diagnostic Charts ........................................................................................................71
1. No Ice Production ..................................................................................................71
. Low Ice Production ................................................................................................74
3. Other .....................................................................................................................75
V. Removal and Replacement of Components ...................................................................76
A. Service for Refrigerant Lines ......................................................................................76
1. Refrigerant Recovery (except MLH model) ...........................................................76
. Brazing ..................................................................................................................77
3. Evacuation and Recharge (R-404A) (except MLH model) ....................................77
4. Refrigerant Recovery, Evacuation, and Recharge - MLH Model (low side, parallel
rack system) ..........................................................................................................78
B. Removal and Replacement of Compressor ................................................................79
C. Removal and Replacement of Expansion Valve.........................................................80
D. Removal and Replacement of Evaporator Assembly Components ............................81
1. Upper Bearing Wear Check ..................................................................................8
. Removal and Replacement of Cutter ....................................................................8
3. Removal and Replacement of Extruding Head .....................................................83
4. Removal and Replacement of Auger ....................................................................83
5. Removal and Replacement of Evaporator ............................................................84
6. Removal and Replacement of Mechanical Seal and Lower Housing ...................85
7. Removal and Replacement of Gear Motor ............................................................ 86
E. Removal and Replacement of Air-Cooled Condenser ................................................87
F. Removal and Replacement of Water-Cooled Condenser ...........................................88
G. Removal and Replacement of Water Regulating Valve - Water-Cooled Model .........89
H. Adjustment of Water Regulating Valve - Water-Cooled Model ...................................90
I. Removal and Replacement of Fan Motor (air-cooled and remote air-cooled models) .90
J. Removal and Replacement of Headmaster (Condensing Pressure Regulator - C.P.R.)
- Remote Air-Cooled Model ......................................................................................91
K. Removal and Replacement of Liquid Line Valve or Suction Line Valve - MLH Model
(low side, parallel rack system) .................................................................................9
L. Removal and Replacement of Evaporator Pressure Regulator (E.P.R.) MLH Model
(low side, parallel rack system) .................................................................................93
M. Removal and Replacement of Water Valves..............................................................93
1. Inlet Water Valve ...................................................................................................93
. Drain Valve ............................................................................................................94
N. Removal and Replacement of Control Board .............................................................95