Panasonic CS-VZ9SKE Service Manual page 115

17.4.14 H59 (Infrared Sensor Error)
Troubleshooting
Check for bad connection of the connector of the infrared sensor unit.
Is DC5V present between 1 – 3 of the infrared sensor unit?
Diagnosis Procedures and Cause
No abnormality is observed
No abnormality is observed
Disconnection/Imperfect
connection of the connector
An abnormality is observed
115
Measures to be Taken
Fix the problem.
Replace the indoor unit control board.
Replace the infrared sensor unit.