Troubleshooting - Hussmann Multideck Meat 3750 Installation Manual

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Table Of Contents

Table of Contents

Installation manual

Trouble shooting

issue

Product temperature is higher

than requirement

Products are freezing up

Cabinet exterior is sweating

Lights are not working

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Page 20

possible reason

Store condition is warmer or more humid

than climate class 3 (25°C/60%RH)

Refrigeration plant is not running or

operating at inappropriate settings or

conditions

Evaporator pressure is not set correctly

Insufficient or no air flow appears at the

case air curtain

Case shelf arrangement has been deviated

significantly from original specified setup

Air Return is blocked by merchandise

None of above

Store condition is too cold compared to

design climate class 3

Case evaporator pressure is

lower than specification.

Store humidity is high

Insufficient ventilation

Icon Controller settings (if fitted)

Case SST

No power supply

Lamp fittings (Tombstone, starter

and ballast) are faulty

Lamp failed

Table 1:-

MJPE multideck and SMD/SME Low Height Multideck

Check store air conditioner operation

Check for compressor rack if it is running.

If rack is running and other possible

refrigeration mechanic to check plant

Check suction pressure settings at the case

Check if case fans are turned on or

operating correctly. If any doubt of fan

Check if coil is frozen up. If frozen then

manufacturers guideline or set to suite

the store operating condition. A colder store

duration. A humid store may need

Re-do the shelf arrangement as per

Check store air conditioner operation. If

store condition can not be lifted, then adjust

cabinet evaporator pressure and defrost

Adjust cabinet evaporator pressure

Check store air conditioner operation

Check case ventilation under and at rear of

the case. A fan kit may be needed.

KITS: (Option Extra – ref Page 21)