Hoshizaki KM-900MWF, KM-900MRF3, KM-900MAF Abnormal Ice, Others, Solenoid Valve, water system

Models: KM-900MAF KM-900MRF3 KM-900MWF KM-900MRF

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4. ABNORMAL ICE

PROBLEM

POSSIBLE CAUSE

REMEDY

[1] Small Cube

a) Ice Cube Guide

1.

Out of position.

1. Place in position.

 

 

 

Circulated water falls into

 

 

 

 

bin.

 

 

b) See chart 1 - [5], and check water supply line, Water

Solenoid Valve, water system,

 

Pump Motor or Controller Board.

 

 

c) Drain Valve

1.

Dirty.

1. Clean.

[2] Cloudy or

a) See chart 2 - [1] and - [3], and check Float Switch, Water Solenoid Valve,

irregular cube

Controller Board, Spray Tubes, water system, refrigerant charge or Expansion

 

Valve.

 

 

 

 

b) Spray Guide

1.

Dirty.

1. Clean.

 

c) Water Quality

1.

High hardness or contains

1. Install a water filter or

 

 

 

impurities.

softener.

5. OTHERS

PROBLEM

POSSIBLE CAUSE

 

REMEDY

[1] Icemaker will

a) Bin Control

1.

Set too cold.

1.

Adjust warmer.

not stop when

Thermostat

2. Defective.

2. Replace.

bin is filled

 

 

 

 

 

with ice.

 

 

 

 

 

[2] Abnormal

a) Pump Motor

1.

Bearings worn out.

1. Replace.

noise

b) Fan Motor

1.

Bearings worn out.

1. Replace.

 

 

2.

Fan blade deformed.

2.

Replace fan blade.

 

 

3.

Fan blade does not move

3. Replace.

 

 

 

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 lines or other

1.

Replace.

 

 

 

surfaces.

 

 

[3] Ice in storage

a) Bin Drain

1. Plugged.

1.

Clean.

bin often

 

 

 

 

 

melts.

 

 

 

 

 

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Hoshizaki KM-900MWF, KM-900MRF3, KM-900MAF service manual Abnormal Ice, Others, Solenoid Valve, water system