4
Trouble Shooting of Indoor Error Code
1 EEPROM parameter error diagnosis and solution (E0/F4)
Error Code
E0/F4
Malfunction decision
conditions
Indoor or outdoor PCB main chip does not receive feedback from
EEPROM chip.
Supposed causes ● Installation mistake
● PCB faulty
Trouble shooting:
Yes
Replace the indoor/outdoor
main PCB.
Power off, then restart the
unit 2 minutes later.
EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed
using a pulsed voltage.
Indoor PCB
Outdoor PCB
Note: The two photos above are only for reference, it may be not same totally with the ones on your side.
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