Troubleshooting - Hussmann Austral H1 Installation Manual

H1 Self Contained glass front multideck
Trouble shooting
issue
Product temperature is higher
than requirement
Products are freezing up.
Cabinet exterior is sweating.
LED Lights are not working.
Water spill on the floor.
The compressor doesn't start
after 2 minutes.
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Hussmann
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.
LED Lamp failed.
The dissipater tray is full or leaking.
Store humidity is too high.
Boiling system is not functioning.
The supply cables is disconnected.
remedial action
Check store air conditioner operation.
Check for compressor unit if it is running.
If unit is running and other possible
reasons are eliminated then call
refrigeration mechanic to check plant
operation.
Check suction pressure settings at the case
and if required adjust as per
case specification.
Check if case fans are turned on or
operating correctly. If any doubt of fan
operation contact technician.
Check if coil is frozen up. If frozen then
check defrost settings as per the
manufacturers guideline or set to suite
the store operating condition. A colder store
may require longer defrost
duration. A humid store may need
more frequent defrost.
Re-do the shelf arrangement as per
the original specification.
Remove merchandise to behind
the load limit labels.
Contact Hussmann.
Check store air conditioner operation. If
store condition cannot be lifted, then adjust
cabinet evaporator pressure and defrost
strategy to suite.
Adjust cabinet evaporator pressure
to suite.
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 17)
Case to Wall: 2500: 96A15-035
3750: 96A15-036
Check settings.
SST set too low.
Check supply is "on" and light
switch is working.
Replace lamp.
Contact service provider.
Check controller, wiring, level sensor
and heater
Reconnect plug.
Installation manual
Page 12