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Si12-619A
Caution for Diagnosis
Service Diagnosis
203
Caution:
Operation stops suddenly. (Operation lamp blinks.)
Cause of above trouble could be "Operation mode conflict".
Check followings;
Are the operation modes all the same for indoor units connected to Multi system outdoor unit?
If not set all indoor units to the same operation mode and confirm that the operation lamp is not
blinking.
Moreover, when the operation mode is in "Auto", set all indoor unit operation mode to "Cool" or
"Heat" and check again if the operation lamp is normal.
If the lamp stops blinking after the above steps, there is no malfunction.
★
Operation stops and operation lamp blinks only for indoor unit which the different operation
mode is set later. (The first set operation mode has priority.)
Troubleshooting
with the LED
Indication
Outdoor Unit
There are green and red LEDs on the PCB. The flashing green LED indicates normal equipment
condition, and the OFF condition of the red LED indicates normal equipment condition.
(Troubleshooting with the green LED)
The LED A (green) of the outdoor unit indicate microcomputer operation condition.
Even after the error is cancelled and the equipment operates in normal condition, the LED
indication remains.
Service PC-board
For 4 Rooms
LED A
(R6333)
Summary of Contents for 3MKS50DVM
Page 13: ...Introduction Si12 619A xii ...
Page 131: ...Control Specification Si12 619A 118 Function and Control ...
Page 213: ...Instruction Si12 619A 200 Operation Manual ...
Page 283: ...Check Si12 619A 270 Service Diagnosis ...
Page 302: ...Si12 619A Outdoor Unit E Series 50 52 58 Class Removal Procedure 289 Step Procedure Points ...
Page 385: ...Wiring Diagrams Si12 619A 372 Appendix FTK X S50 60 71FVLT ...
Page 399: ...Si12 619A vi Index ...