Allied 4DHV Mini-Split Series - Error Codes and Troubleshooting; Error Code E0;F4 Diagnosis

508067-01 Issue 2016 Page 61 of 75
Error Codes
Error Code: E0/F4
Description: Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip.
General Note: Outdoor unit main control board chip is not receiving feedback from EEPROM chip.
NO
NO
Shut off the power supply for two
minutes. Turn unit back on.
Is it sll displaying the error
code?
YES
The unit is operang normally.
Check connecon
Replace the indoor/outdoor
main PCB.
If the EEPROM chip is welded on main
PCB, replace the main PCB directly.
Otherwise, check if the EEPROM chip
is plugged into main PCB correctly.
Correct connecon.
Remarks:
The locaon of the EEPROM chip on the indoor and outdoor PCB is shown in the following two images:
Troubleshooting