Hoshizaki DKM-500BAH service manual Other, Dispensing

Problem

Possible Cause

Remedy

[1]Icemaker will not stop

a) Bin Control

See "II.C.4. Bin Control Troubleshooting."

when bin is filled with

ice.

b) Control Board

1. Defective.

1. See "II.C.5. Control Board

Check Procedure."

[2] Abnormal noise.

a) Pump Motor

1. Bearings worn out.

1. Replace

b) Fan Motor

1. Bearings worn out.

1. Replace

2. Fan blade deformed.

2. Replace fan blade.

3. Fan blade does not

3. Replace.

move freely.

c) Compressor

1. Bearings worn out or

1. Replace.

cylinder valve broken.

2. Mounting pad out of

2. Reinstall.

position.

d) Refrigerant Lines

1. Rub or touch other

1. Replace.

lines or surfaces.

[3]Ice in storage bin

a) Drain Line(s)

1. Plugged.

1. Clean.

often melts.

b) Icemaker and Bin

1. Drains not run

1. Separate the drain lines.

separately.

c) Ice Cube Guide

1. Out of position.

1. Place in position.

Circulated water falls

into bin.

Problem

Possible Cause

Remedy

[1] No ice dispensed.

a) Power Supply

1. OFF position.

1. Move to ON position.

2. Loose connection.

2. Tighten.

3. Bad contacts.

3. Check for continuity and

replace.

4. Voltage too high.

4. Check and get

recommended voltage.

b) Fuse (Inside Fused

1. Blown.

1. Check for short circuit

Disconnect, if any)

and replace.

c) Dispense Switch

1. Connector from front

1. Connect.

panel not connected

to control box.

2. Bad contacts.

2. Check for continuity and

replace.

3. Loose connection.

3. Tighten.

d) Gear Motor

1. Thermal protector is

1. Allow to cool.

tripped.

2. Gear motor winding

2. Replace.

opened.

3. Bearing worn out.

3. Replace.