Panasonic NR-B37MV2, Руководство по обслуживанию

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8.2 Cool, not enough [ Both PC & FC (compressor operates) ]
To confirm when compressor is operating.
YES NO
NO
NO
NO
NO
NO
YES
YES
Does “Energy Saving” turn off and
“Quick Freezing” turn off?
7
6
Does “Energy Saving” and “Quick
Freezing” blink?
9
Does “Energy Saving” turn off and
“Quick Freezing” turn on? Does thermal
fuse blow
out?
5
Does “Energy Saving” and “Quick
Freezing” turn on?
4
3
When PC door opens and PC door SW
pushes, does cold air spout out from
exhaust?
To start self diagnosing function by
opening PC door and FC door and push-
ing “Quick Freezing” SW for 5 seconds.
2
When FC door opens and FC door SW
pushes, does cold air spout out from
exhaust?
1
• Short of DFC thermistor.
• Poor connection between DFC
thermistor and IC 1 on PCB.
• Break of DFC thermistor.
• Poor connection between FFC
thermistor and IC 1 on PCB.
YES
YES
YES
NO
8
Does thermal
fuse blow
out?
• Break of DFC thermistor.
• Defect of PCB as like as defect of
relay, etc.
• Defect of communication circuit and
EEPROM circuit of control PCB.
• Plug out and after few seconds
plug in again.
• Termal fuse blows.
• Abnormal of spec of DFC thermistor.
* When resistor of thermistor is
bigger as like as 6.1 - 6.7K
Ω
at 0°C,
there is some case to blow thermal
fuse out due to becoming defrost
time longer.
YES
• Defect of FC fan motor.
• Poor connection between FC fan
motor and IC 1 on PCB.
Does “Energy Saving” turn off and
“Quick Freezing” blinking?
4
YES
• Break of FCC thermistor.
• Poor connection between FCC
thermistor and IC 1 on PCB.
• Abnormal of spec of DFC thermistor.
* Resistor of thermistor is bigger as
like as 5.9 - 6.5 K
Ω
at 0°C
NO
• Defect of damper.
• Defect of PC door SW.
NO
• Defect of FC fan motor.
• Poor connection between FC fan
motor and IC 1 on PCB.
• Defect of FC door SW.
YES
NR-B37MV2 / NR-B41MV2
Does frost adhere to evaporator much?
11
• Defect of refrigant unit.
NO
• Gap of door, etc.
YES