Panasonic S-45PU1E5 Technical Data & Service Manual page 287

E05 Error in Indoor Unit Transmitting Signal to the Outdoor Unit
1. Error Detection Method
It is judged an error when a unit itself cannot receive a signal that it has sent.
Indoor unit control PC board error
•
• The setting of the terminal resistor select switch on the outdoor unit main PC board is set incorrectly.
2. Error Diagnosis
1 Indoor
Is the indoor/outdoor operation line connected to more than one
1-1
unit outdoor unit? (Network wired?)
control
Is the SHORT on the terminal resistor select switch on the outdoor
PC board
1-2
main PC board set to one unit, and the others are OPEN?
Is the terminal resistor select switch on the outdoor main PC board
1-3
set to OPEN?
1-4 Is the indoor/outdoor operation line opened or shorted?
1-5 Replace the indoor unit control PC board.
•
For information on the procedures for replacing the indoor unit's control PC board, refer to the manual that is packaged with
the indoor unit service board.
A746894 : (U-60PE1E5, U-71PE1E5)
(for single-phase outdoor unit PCB)
TERMINAL EEPROM
A746845 : (U-125PE1E5, U-140PE1E5)
(for single-phase outdoor unit PCB)
TERMINAL EEPROM
5-15
A746844 : (U-100PE1E5)
(for single-phase outdoor unit PCB)
TERMINAL
A746967 : (U-100PE1E8, U-125PE1E8, U-140PE1E8)
(for 3-phase outdoor unit PCB)
TERMINAL
Yes 1-2
No 1-3
Yes 1-4
Set the SHORT to
No
one unit only
Make the SHORT
Yes
setting
No 1-4
Yes Correct the wiring
No 1-5
EEPROM
EEPROM
5