ULT Energy-saving Series
After-sales Service Manual
21
conditioning in the environment where the product is used).
5.3.3 A socket should be equipped for each single equipment, and the power socket should withstand a current
greater than 16 A and be reliably grounded.
5.3.4 Turn on the battery switch on the electric cabinet of the machine when it is powered on, and turn off the switch
when it needs to be shut down for a long time.
5.3.5 The opening time of low-temperature freezer should not exceed 1 minute each time, and the ice water on the
door seal should be wiped clean before closing to ensure good sealing effect.
5.3.6 In order to prolong the service life of the equipment and reduce its energy consumption, it is recommended to
set the equipment temperature at -50°C-80°C under the premise of ensuring the safety of the stored items.
5.3.7 This equipment is for low temperature storage of items, it is not suitable to be used as a fast freezing tank, and
it cannot be used to freeze a large number of hot items or large volume liquid forcibly and rapidly.
5.3.8 If the machine does not refrigerate after 2-3 hours of power on, please unplug the power supply and contact the
local after-sales service as soon as possible.
5.3.9 In case of alarm fault or other faults, please follow the prompts on the display board to eliminate the fault. If
there is no prompt or fail to eliminate the fault by yourself, please do not dismantle it arbitrarily, and contact the
after-sales service in time to arrange professional maintenance personnel to help eliminate the fault.
5.4 Fault code query
1) When the difference between the perceived condenser temperature minus the ambient temperature is greater than
or equal to 13°C, the "Dirty condenser" indicator light will be on, accompanied by the corresponding buzzer alarm.
Within 3 hours after the initial power on, both the indicator light and the buzzer will not alarm.
。
2) In case of sensor fault, the "Sensor fault" indicator light is on;
3) In case of main sensor fault, the actual temperature and the main sensor fault code "E2" are displayed alternately
on the display screen.
Main sensor E2
in the freezer
