29
DIAGNOSIS AND SOLUTION
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 the EEPROM chip.
Supposed causes
·
Installation mistake
·
PCB faulty
Troubleshooting
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 EEPROM chip location,
please refer to Fig. 29.
Fig. 29 – Outdoor PCB (18K Model)
NOTE: Fig. 29 is for reference only and the PCB pictured may differ from the actual unit.
Содержание 538PAQ009RBMA
Страница 17: ...17 REFRIGERATION CYCLE DIAGRAMS Fig 12 Refrigerant Cycle Diagram Heat Pumps ...
Страница 39: ...39 DIAGNOSIS AND SOLUTION CONT Fig 34 P U Fig 35 P V ...
Страница 40: ...40 DIAGNOSIS AND SOLUTION CONT Fig 36 P W Fig 37 N U ...
Страница 41: ...41 DIAGNOSIS AND SOLUTION CONT Fig 38 N V Fig 39 N W ...