Panasonic CZ-KPY3A series Service Manual

5-54
5
1-1
3-1
2-1
Yes
No
1 System
configuration
Is the indoor EEPROM setting, item code 0B, on the indoor unit’s
control PC board set to 0001?
2-1
After correcting the
setting, 3-1
4-1
Yes
No
2 Indoor unit’s
EEPROM
setting
P14 O2 Sensor Detect
Error Detection Method
Error Diagnosis
It is judged an error whenever the outdoor unit receives the signal “O2 Alarm Occurred” from the indoor unit.
•
With the indoor unit’s EEPROM setting (item code 0B) set to 0001, the EXCT input was shorted.
•
1.
2.
Is an O2 sensor being used?
Correct wiring
4-1
Yes
No
Is the indoor EXCT socket (wire) shorted?3-1
3
4
Indoor EXCT
wiring
4-3
4-2
Yes
No
Is the alarm triggered if the indoor EXCT socket (wire) is
disconnected, and the power is reset?
Since there is no error, see what happens.
4-1
4-2
4-3 Indoor unit control PC board error replace PC board.
Indoor unit’s
control
PC board
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Panasonic CZ-KPY3A series Specifications

General

Brand	Panasonic
Model	CZ-KPY3A series
Category	Air Conditioner
Language	English