Panasonic NR-F532TT - Self Diagnosis Function

22
10.2. SELF DIAGNOSIS FUNCTION
When abnormality is caused in the refrigerator, the sign is displayed on LED.
Indication contents
The sisplay sign list is put on the PCB cover in the back of cabinet.
1. 2 character type of LED is adopted on this model.
Then, if "H01"display, the sign "H"and next to "01".(The sign separates twice sign.)
2. *1...These display appear when an service function is controlled.(Normally customer can not see these indications.)
3. Check the "Check point" according to lower number(1.2.3.)
Signal Symptom Check point Condition Display release
U10 Warning that door is kept open. 1.Close compartment door completely
2.Door swich circuit
3.Door aliment
4.Control PCB
Sign appears when you leave the
door open more than 1 minutie.
Close the door
Adjust door
Replace door swich
H01 FC temperature sensor circuit has
trouble.
1.PC sensor circuit
2.Control PCB
Open or short Replace parts
H02 PC temperature sensor circuit has
trouble.
1.PC sensor circuit
2.Control PCB
Open or short
H04 Ice making sensor has trouble. 1.IC sensor circuit
2.Control PCB
Open or short
H05 DEFROST sensor circuit has trou-
ble.
1.DEF sensor
2.DEF sensor circuit
3.Control PCB
4.Thermal fuse
Open or short
H07 ATC sensor circuit has trouble. 1.ATC sensor
2.ATC sensor circuit
3.Control PCB
Open or short
H10 SC sensor circuit has trouble. 1.SC sensor
2.Control PCB
Open or short
H21 Ice maker has trouble.
(Stop to protect ice maker)
1.Ice maker
2.Rotation part of ice maker
3.Control PCB
When ice maker operates more
than 1 minute continuously.
Reset display
or
Replaceparts
H28 Fan motor for compressor room is
opened or locked.
1.Fan motor(compressor room)
2.Fan motor circuit
3.Something touches fan blade
Open or short
H29 Fan motor for evaporator is
opened or locked.
1.Fan motor for evaporator
2.Fan motor circuit
3.Ice foam touches fan blade
Open or short
H31 Defrosting circuit has trouble. 1.FC defrost heater
2.Thermal fuse
3.Control PCB
Temperature of defrost Sensor
does not reach cut-off tempera-
ture.
H35 Refrigerating unit has trouble.
(Gas leakage at high pressure
side// Poor compression)
1.Swiching valve
2.Gas leakage at high pressure side
3.Poor compression
Even if compressor runs, FC
temperature and PC temperature
would not be blow 0°C continu-
ously.
H36
*1
Refrigerating unit has trouble.
(Gas leakage at low pressure
side)
1.Gas leagage at low side "H40" and "H36" display repeat-
edly.
Replace parts
H38
*1
Rotation of FC fan motor has trou-
ble.
1.Control PCB
2.Fan motor(FC)
Open circuit between PCB and
fan- Fan motor
(signal circuit of detector for fan
motor is opened) *2
H40 IPM & Compressor Protection
Control has trouble.
1.Control PCB
2.Compressor(Lock)
Over current flow into IPM for a
long time.
H41 Undervoltage protection has trou-
ble.
1.Power supply volt
age
2.Control PCB
Low voltage add to unit for a long
time.
Reset display
or
Replaceparts
H43
*3
Fan motor for evaporating pan is
opened or locked.
1.Something touches fan blade.
2.Fan motor for evaporating pan
3.Fan motor circuit
4.Control PCB
Open or short
H50 Communication error 1.Control PCB
2.Operation PCB
3.Wire circuit between control PCB and
operation PCB
The signal does not flow IC1 and
IC201.
H51
*1
Transmit in PCB has trouble. 1.Control PCB Micro- computer can not read or
write the data.
Replace parts