Omega OBMF323B Instruction Manual page 14

Operation Instruction
Temperature control of freezing chamber

The freezing temperature is relatively low in "COLDER" position, while the freezing temperature is relatively
high in "COLD" position, thus, "NORMAL" position is generally used.

When ambient temperature is high in summer, the temperature shall be in the range from "NORMAL" to "
COLD". If the ambient temperature is above 35℃, then "COLD" position shall prevail.

When ambient temperature is low in winter, the temperature shall be in the range from "NORMAL" to "
COLDER". If the ambient temperature is below 10℃, then "COLDER" position shall prevail.
Noise inside the Unit
You may notice that your unit makes some unusual noises. Most of these are perfectly normal, but you should be
aware of them.
These noises are caused by the circulation of the refrigerant liquid in the cooling system. It has become more
pronounced since the introduction of CFC free gases. This is not a fault and will not affect the performance of your
unit. This is the compressor motor working, as it pumps the refrigerant around the system.
14