Error Codes: Hydro-Box; A1" Malfunctioning Hydro-Box Pcb - Daikin ESIE13-02 Service Manual

Error Codes: Hydro-box

3 Error Codes: Hydro-box
1

"A1" Malfunctioning Hydro-box PCB

3.1
User interface
display
Error generation
3
Supposed causes
4
Troubleshooting
5
Caution
Part 4 – Troubleshooting
A1
The error is generated when the data from the EEPROM is not received correctly.
EEPROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds its
content without power. It can be erased, either within the computer or externally and usually requires
more voltage for erasure than the common +5 volts used in logic circuits. It functions like non-volatile
RAM, but writing to EEPROM is slower than writing to RAM.
The possible cause is a malfunctioning hydro-box PCB.
The malfunction may be caused by an external
Locate the cause and correct the situation.
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Switch the power off
and on again to restart.
Normal reset?
Yes
factor, rather than damaged parts.
94
No
Replace
hydro-box PCB.
ESIE13-02