Overall Malfunction - Daikin VAM 500EJ Service Manual

Si-93
1.3

Overall Malfunction

Remote Controller
Error Code
LCD Display
LED Indication
Remote Controller
Error Detection
Errors are detected based on open circuit in external input terminals (J1-JC).
Method
Error Generating
When external input terminal (J1-JC) is shorted during operation ("Overall Alarm" must be set in field
Conditions
setting mode).
I Faulty external device
Possible Causes
I Broken wire
I Faulty control PCB
Troubleshooting
Troubleshooting
6 6 6 6 0 0 0 0
5
Inspection Unit No.
5 5
Main Unit
Is
connected
NO
external device
operating
properly?
YES
Measure resistance
between external
input terminals
(J1-JC).
Is
resistance
NO
200 Ω or
lower?
YES
5
Remove the cause of error in
connected external device.
Check wires for abnormalities
(broken wire, faulty contact,
etc.).
Replace control PCB.
Troubleshooting
(HF002)
33