Panasonic NR-B53V1 - Change Size of the Ice; How to Start the Dispenser Service Mode; Instruction of Self Diagnosis Display Code (Dispenser)

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9.6. Instruction of Self Diagnosis Display Code (dispenser).
Signal Symptom Check point Condition Display release
H50 Communication error 1. Control PCB
2. Operation PCB
3. Wire circuit between control PCB
and operation PCB
Micro-computer cannot read
or write the data
Replace parts
H04 ICE sensor error 1. Sensor ICE
2. Sensor ICE circuit
3. Dispenser PCB
Open or short Replace parts
H21 Auto Ice-making circuit has trouble 1. Rotation parts
2. Ice-maker
3. Dispenser PCB
Under Ice-maker protection
control
Replace parts
H45 (1) Over current protection for shooter
motor
1. Shooter motor
2. Dispenser Control PCB
Under Ice-maker protection
control
Replace parts
H45 (2) Select button has trouble 1. Dispenser panel PCB
2. Dispenser operation panel
Mechanical malfunction
(select button) or PCB
malfunction
Replace parts
H45 (3) Push lever has trouble 1. Push lever Mechanical malfunction Replace parts (Holder
control DIS AS)