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P/N 0446551_A
TIPS AND TROUBLESHOOTING
Before calling for service, check the following:
1. Verify the equipment is connected to the
electrical power supply.
2. Check fixture loading. Overstocking case will
affect its proper operation.
3. If frost is collecting on fixture and or product,
first verify that Humidity Control is working
properly, then check that store relative humid-
ity is below 55%.
4. Confirm that the defrost schedule is set as
specified in the model's Technical Data Sheet.
5. Confirm that the correct temperature setting
is being used for the case evaportor coil as
specified in the model's Technical Data Sheet.
IMPORTANT
INFORMATION
For prompt service when contacting the
factory, be sure to have the case model and
serial number from the case serial plate.
REPLACING FAN MOTORS AND BLADES
See cross section for location of evaporator
fans. Should it ever be necessary to service or
replace the fan motors or blades be certain that
the fan blades are re-installed correctly. T
BLADES MUST BE INSTALLED WITH RAISED
(
EMBOSSING
PART NUMBER ON PLASTIC BLADES
POSITIONED AS INDICATED ON THE PARTS LIST
(Refer to the case data sheet for each model.)
For access to these fans:
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
SERVICE
Always disconnect the electrical power
at the main disconnect when servicing
or replacing any electrical component.
This includes, but is not limited to, such
items as fans, heaters, thermostats and
lights.
1. Turn off power
2. Remove bottom display racks and deck pans.
3. Disconnect fan from wiring harness.
4. Remove fan blade.
5. Lift fan plenum and remove screws holding
bottom of motor to fan basket.
6. Replace fan motor and blade.
7. Lower fan plenum.
8. Reconnect fan to wiring harness.
9. Turn on power
10. Verify that motor is working and blade is
turning in the correct direction.
11. Ensure the plenum rests on the case bottom
with no gaps.
12. Replace display racks and deck pans, Bring
HE
merchandiser to operating temperature before
)
restocking.
.
Do NOT allow product to sit in a
WARNING
!
WARNING
!
non-refrigerated area.
Island & Multi-deck Island
6-1
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