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

Page 31
Image 31
Hoshizaki F-300BAF service manual Low Ice Production