Freezer does not start up
Malfunction phenomenon
Malfunction checks and resolutions
Poor refrigeration effect
The unit is noisy
Is the power supply normal? Has the main power switch been
turned on yet?
Is the voltage supply too low?
Is there any voltage input from the outside?
Is the ambient temperature too high?
Are the inner doors and outer doors closed properly?
(Has any ice or frost damaged the seals between the door and
the frame?)
Is the condenser filter clogged?
Is the temperature setting correct?
Is the freezer being kept away from direct exposure to sunlight?
Is the freezer near any heat source?
Is the porthole plug installed in the porthole with proper
insulation materials?
Has the freezer been loaded with too many non-frozen samples
within the last few hours?
Should there be any malfunctions in the system, please attempt to answer the
following questions before notifying maintenance or calling a Haier Equipment
& Instrument Service Center. Please do not dismantle the freezer yourself.
Is the unit set on a firm and level floor?
Is the exterior of the unit touching any objects?
Is the freezer unit leveled with the leveling legs?
Troubleshooting
25
4
If the power cord needs to be extended, the cross-section of the extended cable must be
no less than 2 mm² and no longer than 3 m for products of 208V~230V/50Hz or
208V~230V/60Hz and no less than 3 mm² and no longer than 3 m for products of
115V~/60Hz to avoid fire or electric shock.
When a CO
2
/LN
2
backup system is activated, the installation place must be well ventilated.
Increased CO
2
in the air may be harmful and even fatal. If the ventilation is poor, other
methods should be considered in order to ensure safe working environments.
If there is a leakage of petroleum gas or other flammable gas, close the gas supply valve
and open doors and windows to ventilate the air. Do not plug or unplug your freezer unit in
order to avoid potential explosion or fire.
Only professional technicians or Haier service personnel can install the unit. Failure to do
so may cause electricity or fire
Please use the dedicated power supply marked on the product label to avoid fire and
electric shock.
If the voltage being used is 10% higher than the rated voltage, a regulator with a capacity
of 4000 W or higher must be installed.
The freezer must be securely installed on a firm floor. Tilted installation may result in the
product tipping over thereby causing injury and damage.
Your Haier ULT unit is equipped with a standard three-prong power plug(grounded)
complying with the standard three-prong socket (grounded) rated 16 A (
208V~230V
/50Hz
or
208V~230V
/60Hz) or rated 20A (115V~/60Hz). Removal of the ground prong is strictly
prohibited for safety reasons under any circumstances. The electrical power plug should be
securely plugged into the socket. A loose plug in the socket may cause fire.
The power socket intended for your Haier ULT usage must be grounded to avoid electric
shock.
If the socket does not meet this requirement, the condition must be corrected by a qualified
technician before using the ULT unit.
The replacement of any spare parts (battery etc.) shall be conduct by technicians approved
by manufacturer.
Safety Precautions
Ignoring this warning may result in
death or serious injury
Ignoring this warning may result in
death or serious injury,and/or damage
to the freezer and property
Actions or operations
which are prohibited
Actions or operations
which must be followed