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7.4 Diagnosis and Solution
7.4.1 Indoor unit trouble shooting
7.4.1.1 Indoor unit EEPROM parameter error diagnosis and solution.
Indoor or outdoor PCB main chip does not receive feedback
from EEPROM chip.
● Installation mistake
● Faulty PCB
Trouble shooting:
Yes
Replace the indoor/outdoor
main PCB.
Power off, then restart the
unit 3 minutes later. Does
a problem still remain?
EEPROM: a type of read-only memory. The contents can be erased and reprogrammed using a pulsed
voltage. To locate the EEPROM chip,.
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