Panasonic NR-BN30PGW / NR-BN30PGB / NR-BN30PS1 / NR-BN30QGW / NR-BN30QGB / NR-BN30QW1 / NR-BN30QS1 Service Manual ▷ View online
5
Circuit Diagram
1
Schematic Circuit Diagram
2 Brief Description of Control Principle
Model NR-BN30** is a no frost cooling system fridge freezer. An electronic type of all the control
is generally adopted. The control display panel on the fridge door controls the start and stop of
compressor, and the refrigerator temperature.
is generally adopted. The control display panel on the fridge door controls the start and stop of
compressor, and the refrigerator temperature.
6
Maintenance Service and Trouble Shooting
Maintenance Service and Trouble Shooting
1. No cooling
NO
YES
NO
YES
NO
YES
When charging refrigerant, we
must notice to make refrigerant true.
must notice to make refrigerant true.
No cooling
If compressor can
run after it stop to
run five minutes
and give power.
run after it stop to
run five minutes
and give power.
Check and repair according to
the section of "the compressor
the section of "the compressor
does
not work
".
If compressor can
run naturally and
temperature raising
of condenser is very
low
run naturally and
temperature raising
of condenser is very
low
Refrigerant leak. Check, repair
and charge refrigerant again.
Block by ice or dirty things, change
filter and change refrigerant again.
7
Maintenance Service and Trouble Shooting
2. The compressor doesn't stop
YES
NO
YES
NO
YES
NO
YES
Compressor does not stop
Is refrigerator
cooling?
cooling?
Check and repair according to
the section of "No cooling".
the section of "No cooling".
Is cooling capacity
insufficient?
insufficient?
Check and repair according to
the section of "Cooling capacity
is insufficient".
the section of "Cooling capacity
is insufficient".
1 The thermostat was set at
the coldest position.
2 The ambient temperature
is very high or the
refrigerator is near by heat
resource.
3 The door was opened too
many times or there is more
fresh food inside.
the coldest position.
2 The ambient temperature
is very high or the
refrigerator is near by heat
resource.
3 The door was opened too
many times or there is more
fresh food inside.
Adjust and instruct
consumer how to use.
consumer how to use.
Check and repair the main
control panel
control panel
8
Maintenance Service and Trouble Shooting
3. Cooling capacity is insufficient
YES
NO
YES
YES
NO
YES
Cooling capacity is insufficient
Adjust and instruct
consumer how to use
consumer how to use
Repair
Is the ambient
temperature
low than 16°C
temperature
low than 16°C
Does the
refrigerant leak
slowly?
refrigerant leak
slowly?
Check the
thermostat is
correct?
thermostat is
correct?
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