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10.2 Trouble shooting
10.2.1 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: 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.
Indoor PCB
Outdoor PCB
Summary of Contents for 38QHC009D8S Series
Page 1: ...QHC R32 Inverter Series Service Manual R32...
Page 12: ...10 For 42QHC009D8S For 42QHC012D8S For 42QHC018D8S...
Page 13: ...11 For 42QHC024D8S...
Page 23: ...21 8 Wiring Diagram 8 1 Indoor Unit 42QHC009D8S 42QHC012D8S 42QHC018D8S 42QHC024D8S...
Page 24: ...22 8 2 Outdoor Unit 38QHC009D8S 38QHC012D8S...
Page 25: ...23 38QHC018D8S 38QHC024D8S...