LG Therma V ZHBW056A0 Service Manual page 77

Air-to-water heat pump

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Code

Description

No.

PCB(Heater) EEPROM

Check Sum Error

Check Point

1. Check the EEPROM Direction

2. If the EEPROM value & the Program value are not matched, the Code is Displayed

3. After Checking the connection and Insertion, replace the PCB or Option PCB

Cause

• Check sum error

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Normal Condition

1. Check the poor soldering

2. Check the insertion condition of the EEPROM

3. Check the PCB Connection

Only training and service purposes.

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