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9.3 Diagnosis and Solution
9.3.1 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:
If the EEPROM chip
is welded on main
PCB, replace the
main PCB directly.
Otherwise, check
whether the
EEPROM chip
plugged in main PCB
well?
Yes
No
Yes
Correct the connection .
Replace the main PCB.
Shut off the power supply and
turn it on 5 seconds later. Is it
still displaying the error code ?
EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed
voltage. For the location of EEPROM chip, please refer to the below photos.
Indoor PCB
Outdoor PCB
Note: The two photos above are only for reference, it’s may be not same totally with the ones on
your system.
Summary of Contents for WAE009AMFI15RL
Page 7: ...5 2 2 Part names of Indoor Outdoor units ...
Page 18: ...16 24000 BTU 230V Cool Only 24000 BTU 230V Heat Pump ...
Page 53: ...51 P U P V ...
Page 54: ...52 P W P N ...