MUND CLIMA MUPR-H6, Service Manual

Page: 44 / 58

44
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