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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:
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.
Note: The two photos above are only for reference, it’s may be not same totally with the ones on
your side.
Outdoor PCB(18k model)
Indoor PCB
Содержание MROHC09AS
Страница 14: ...12 5 Wiring Diagram 5 1 Indoor Unit MWOHC09S MWOHC12S MWOHC18S ...
Страница 15: ...13 MWOHC24S ...
Страница 16: ...14 5 2 Outdoor Unit MROHC09AS MROHC12AS ...
Страница 17: ...15 MROHC18AS ...
Страница 18: ...16 MROHC24AS MROHC09AS MROHC12AS ...
Страница 19: ...17 MROHC18AS ...
Страница 29: ...27 T2 7 C 44 6 F the compressor frequency will not be limited ...
Страница 53: ...51 Take the 9k model as example P V P U ...
Страница 54: ...52 N U P W ...
Страница 55: ...53 N W N V ...