F31 Outdoor Nonvolatile Memory (Eeprom) Error - Panasonic 2WAY Multi Technical & Service Manual

F31 Outdoor Nonvolatile Memory (EEPROM) Error

Error detection method
• An error is determined when the nonvolatile memory (EEPROM) on the outdoor main board cannot be
written.
Troubleshooting
1
Is the nonvolatile memory on the outdoor main board correctly
1-1
Nonvolatile
oriented in the IC socket, and inserted fi rmly?
memory
Turn OFF the outdoor unit, then turn ON and observe. If
1-2 the error recurs, replace nonvolatile memory (provided with
service board). Does this eliminate the error?
● For a procedure on replacing non-volatile memory (EEPROM) and an outdoor main board, see "5 Reference
Document."
● For board and Electrical Wiring Diagram, see Chapter 6.
• Outdoor main board: page VI-2
• Outdoor power board: page VI-3
• Converter board: VI-4
• Indoor control board for DC motor models: page VI-5
• Outdoor Unit Electrical Wiring Diagram: page VI-6
IV–65
Yes 1-2
No Repair
Yes Defective EEPROM
Replace indoor control
No
board