York Pyrenees YM9FXC030BAA FX Series - Diagnosis and Solution

8.2 Diagnosis and Solution
8.2.1 EEPROM parameter error diagnosis and solution
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.