MAINTENANCE SERVICE AND ANALYSIS GUIDE

MALFUNCTION

POSSIBLE CAUSE

SOLUTION

Compressor will not start -

1.

Service cord unplugged

1.

Plug in service cord

no hum

2.

Fuse blown or removed

2.

Replace fuse

 

3.

Overload tripped

3.

Determine reasons and correct

 

4.

Control stuck open

4.

Repair or replace

 

5.

Wiring incorrect

5.

Check wiring against the diagram

Compressor will not start -

1.

Improperly wired

1.

Check wiring against the diagram

hums but trips on overload

2.

Low voltage to unit

2.

Determine reason and correct

protector

3.

Starting capacitor defective

3.

Determine reason and replace

 

4.

Relay failing to close

4.

Determine reason, correct or replace

Compressor starts and runs,

1.

Low voltage to unit

1.

Determine reason and correct

but short cycles on overload

2.

Overload defective

2.

Check current, replace overload protector

protector

3.

Excessive head pressure

3.

Check ventilation or restriction in

 

 

 

 

refrigeration system

 

4.

Compressor hot-return gas hot

4.

Check refrigerant charge, fix leak if necessary

Compressor operates long

1.

Short of refrigerant

1.

Fix leak, add charge

or continuously

2.

Control contact stuck

2.

Repair or replace

 

3.

Evaporator coil iced

3.

Determine cause, defrost manually

 

4.

Restriction in refrigeration system 4.

Determine location and remove restriction

 

5.

Dirty condenser

5.

Clean condenser

 

6.

Location too warm

6.

Ventilate area or change location.

Compressor runs fine, but

1.

Overload protector

1.

Check wiring diagram

short cycles

2.

Cold control

2.

Differential too close - widen

 

3.

Overcharge

3.

Reduce charge

 

4.

Air in system

4.

Purge and recharge

 

5.

Undercharge

5.

Fix leak, add refrigerant

Starting capacitor open,

1. Relay contacts stuck

1.

Clean contacts or replace relay

shorted or blown

2.

Low voltage to unit

2.

Determine reason and correct

 

3.

Improper relay

3.

Replace

Relay defective or burned out

1.

Incorrect relay

1.

Check and replace

 

2.

Voltage too high or too low

2.

Determine reason and correct

Refrigerated space too warm

1.

Control setting too high

1.

Reset control

 

2.

Refrigerant overcharge

2.

Purge refrigerant

 

3.

Dirty condenser

3.

Clean condenser

 

4.

Evaporator coil iced

4.

Determine reason and defrost

 

5.

Not operating

5.

Determine reason, replace if necessary

Objectionable noise

1.

Fan blade hitting fan shroud

1.

Reform or cut away small section of shroud

 

2.

Tubing rattle

2.

Locate and reform

 

3.

Vibrating fan blade

3.

Replace fan blade

 

4.

Condenser fan motor rattles

4.

Check motor bracket mounting, tighten

 

5.

General vibration

5.

Compressor suspension bolts not loosened

 

 

 

 

on applicable models - loosen them

 

6.

Worn fan motor bearings

6.

Replace fan motor

4

1/08

N138647

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Master Bilt Ice Merchandiser manual Maintenance Service and Analysis Guide

Ice Merchandiser specifications

Master Bilt Ice Merchandisers are essential for businesses looking to efficiently store and display ice products. Designed with both functionality and durability in mind, these merchandisers combine advanced technology with user-friendly features to meet the needs of retailers, convenience stores, and other commercial establishments.

One of the standout features of Master Bilt Ice Merchandisers is their robust construction. Built with high-quality materials, these units are designed to withstand the rigors of daily use while maintaining optimal performance. The exterior is often composed of stainless steel or other durable metals, which not only provide a sleek appearance but also resist corrosion and enhance longevity.

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Master Bilt also emphasizes user convenience with features such as adjustable shelving and sliding glass doors. Adjustable shelving allows for flexible storage options, accommodating different sizes and types of ice products. Sliding glass doors minimize frost build-up, improving visibility while making it easier for customers to access the items inside without letting too much cold air escape.

For added security, many models come equipped with locking mechanisms, ensuring the protection of valuable products. These merchandisers also incorporate efficient ventilation systems that prevent overheating and maintain a stable environment for the stored ice.

In summary, Master Bilt Ice Merchandisers offer a combination of durability, energy efficiency, and user-friendly features that make them an excellent choice for any business needing reliable ice storage and display solutions. With advanced technologies, robust construction, and attention to customer interaction, these units not only enhance product visibility but also streamline operations, proving to be an invaluable asset for retailers.