
Operation Instructions
During power interruption, fully charged batteries can keep the warning function operational for 72
hours. If power interruption occurs a while after the appliance is first initiated, it will take 2 days for the
appliance to fully charge the batteries. During the process of charging the batteries, the remote warning
contact is maintained in operational mode.
Warning test procedures
Press "Warning Test" button. If one press of the button results in 3 buzzes of 1Hz, 3 flashes of the
warning indicator and 3 operation cycles of the remote warning relay before disconnection, the warning
system is deemed to be in a normal state.
Staff should be designated to daily inspection and record of the operation
status of the appliance. Items in storage should be moved to another appliance
if temperature fluctuates abnormally.
Troubleshooting
Problem
Unit does not operate.
Desired temperature is not reached.
Excessive noise.
Warning indicator blinks with buzz.
Solution
Fuse in good condition.
Appliance is not properly plugged.
Failure of input and control cables.
Low voltage.
Excessive or hot stuff in storage.
No space saved between stuff in storage.
Under direct sunlight or near heat resource.
Frequent opening door.
High ambient temperature.
Ventilation blocked.
Appliance not placed on flat surface.
Appliance contacts other objects.
New items loaded while temperature is not at 2-6°C.
Door not tightly closed.
Insufficient power supply.
Temperature exceeds designed degree.
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Summary of Contents for BBR 950
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