E0/F4/Ea (Eeprom Parameter Error) - Carrier 42QHP09E8S Service Manual

5.2

E0/F4/EA (EEPROM parameter error)

Description: Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip.
Recommended parts to prepare:
• Indoor PCB
• Outdoor PCB
Troubleshooting and repair:
Shut off the power supply and turn it
If the EEPROM chip is welded on main
PCB, replace the main PCB directly.
Otherwise, check if the EEPROM chip
Replace the indoor/outdoor
Remarks:
The location of the EEPROM chip on the indoor and outdoor PCB is shown in the following two images:
Note: These images are for reference only.
on 2 minutes later.
Is it still displaying the error
code?
YES
plugged in main PCB well.
Is it plugged well?
main PCB.
NO The unit is operating normally.
NO Correct the connection.
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