PRODUCT INSTALLATION MANUAL
DO13 SELF SERVE OLIVE
_________________________________________________________________________________________________________________________
Page 22
Hussmann
Troubleshooting
ISSUE
POSSIBLE REASON
REMEDIAL ACTIONS
Product temperature is higher
than requirement.
Store condition is warmer or more humid
than climate class 3 (25°C/60%RH).
Check store air conditioner operation.
Refrigeration plant is not running or
operating at inappropriate settings or
conditions.
Check for compressor rack if it is running.
If rack is running and other possible
reasons are eliminated then call
refrigeration mechanic to check plant
operation.
Evaporator pressure is not set correctly.
Check suction pressure settings at the case
and if required adjust as per
case specification.
Insufficient or no air flow appears at the
case air curtain.
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.
Case shelf arrangement has been deviated
significantly from original specified setup.
Re-do the shelf arrangement as per
the original specification.
Air Return is blocked by merchandise.
Remove merchandise to behind
the load limit.
None of above.
Contact Hussmann.
ISSUE
POSSIBLE REASON
REMEDIAL ACTIONS
Products are freezing up.
Store condition is too cold compared to
design climate class 3
Check store air conditioner operation. If
store condition can not be lifted, then adjust
cabinet evaporator pressure and defrost
strategy to suite.
Case evaporator pressure is
lower than specification.
Adjust cabinet evaporator pressure
to suite.
ISSUE
POSSIBLE REASON
REMEDIAL ACTIONS
Cabinet exterior is sweating.
Store humidity is high.
Check store air conditioner operation
Insufficient ventilation.
Check case ventilation under and at rear
of the case. A fan kit may be needed.
KITS: (Option Extra
– ref Page 21)
Case to Wall: 2500: 96A15-035
3750: 96A15-036.
Anti sweat controller settings (if fitted).
Check settings.
Case SST.
SST set too low.
ISSUE
POSSIBLE REASON
REMEDIAL ACTIONS
LED are not working.
No power supply.
Check supply is “on” and light
switch is working.
LED fittings.
Call technician to check and
replace in necessary.
LED failed.
Replace LED.
Table (1) General Troubleshooting
