4-2
SERVICE
P/N 9FQ-6-P110-075-00_B
U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com
TROUBLESHOOTING
INVESTIGATE TROUBLE ACCORDING TO THE FOLLOWING TABLE:
Try performing the check points and actions to solve the problem . If the merchandiser does not
work correctly, or you hear an abnormal noise, smell something abnormal or smoky, immediately
stop using the merchandiser and remove the plug from the power socket . Remove all items from
the merchandiser, and then inform the “necessary information” to the supplier or dealer where you
purchased the merchandiser or a licensed service provider .
17
Troubleshooting
Necessary information
Symptom
Check points
Actions
Refer to “Controls and Adjustments”
on page 2-3 .
Refer to Page 1-1 for location requirements .
Refer to “Cleaning Drain Evap . System” on Page 3-6 .
Clean periodically as needed .
Place the merchandiser securely on a
strong and level floor .
Move the merchandiser away from a wall .
Do not place items hindering ventilation .
（
Presence or absence of a symbol on the digital display board, a symbol on the digital
display board, if it is presence, others, in details as much as possible .
）
（
You may find details in the serial plate or badge .
）
（
Please inform the building / room number and any convenient landmark
）
①
Symptom
②
Model number
③
Serial number
④
Your name, address, telephone number, route
⑤
Date of purchase
⑥
Preferred visit date
The case
can not get
cold at all
The case
is not cold enough
The case is
making an odd or
loud noise .
Dew formation
outside of the
case .
Confirm the recovery .
Keep the wind speed less than 47 .2 FPM (0 .2 mps) .
Refer to Page 1-1 for recommended operating
ambient temperatures .
Move the location of the installation . Refer to
“Location” on page 1-1 and 1-2 .
Contact the supplier or dealer where you
purchased the merchandiser or a licensed service
provider .
The power supply is cut off .
The items are inserted without pre-cooling .
The items close off the discharge air inlet or
discharge air outlet .
The items are placed at the air inlet opening or
air outlet opening of the condenser .
The condenser is clogged .
The drain pan tray is dirty .
The setting of the temperature is high .
The merchandiser is installed in direct sunlight,
or near an oven or stove .
The case is installed on an unstable floor .
The case does not stand up correctly .
The rear of the case is touching a wall .
For a while after starting the case, you may hear some noise from the compressor . However, it will
decrease soon .
On hot summer days, or depending on the location of the installation, a dew may stick to the outer
surface of the merchandiser
（
especially the glass surface
）
.
In case of high humidity, a dew is formed by touching cold objects to the moisture in the air, so it is
not a malfunction . When the dew is attached, wipe off with a dry cloth .
These case models are designed for operation in Type II or below environments .
The ambient temperature, humidity
excessively high .
The wind is hitting the merchandiser .
Insert the power plug in securely .
The power plug is disconnected .
The breaker for wiring is operated .
The electric leakage breaker was operated .
