Troubleshooting - nardi HB21TSSAA Manual De Funcionamiento

Troubleshooting Tips
When the refrigerator is first plugged in, the
compressor operates for long periods or
switches on and off frequently. In this case, it
will take a longer time for the inner temperature
to reach the desired value.
The external surface of the refrigerator will be
warm, especially when first plugged in, as a
result of its anti-sweat design.
The flow of the refrigerant through the
refrigeration coils may make a babbling noise.
This noise is usually produced by the
evaporator and compressor. When the
compressor comes to a stop, the refrigerant
backflow of will make a noise like running
water, either from time to time or continuously.
The refrigerator makes a humming noise when
first plugged in or started up. This sound will
fade away when the refrigerator is in stable
operation.
The compressor may produce a humming
sound during operation and a clicking sound
upon starting and stopping.
Water dropping onto the defrost heater can
cause a sizzling or buzzing sound during a
defrost cycle. At the end of a defrost cycle, a
slight popping sound may be heard, and the
evaporator may make a gurgling noise like that
of boiling water.