Magnetic Relay Error - Fujitsu Airstage V-II Service Manual

Trouble shooting 23
OUTDOOR UNIT Error Method:

Magnetic Relay Error

Detective Actuators:
Current sensor 2 (current sensor for
constant speed compressor)
Forecast of Cause :
1. Magnetic Relay (for constant speed compressor) defective
2. Current sensor 2 (current sensor for constant speed compressor) defective
3. Main PCB defective
Check Point 1 : Check magnetic relay (for costant speed compressor)
Magnetic relay (for constant speed compressor) operation check
(Refer to "Sarvise Parts Information 13")
OK
Check Point 2 : Check the Current sensor 2 (current sensor for constant speed
compressor)
Current sensor 2 (current sensor for constant speed compressor) check
* For the characteristics of current sensor 2 (current sensor for constant speed compressor),
refer to the "Service Parts Information 7".
OK
Check Point 3 : Replace Main PCB
Change Main PCB and set up the original address.
(Refer to 06-03 page Main PCB removal.)
* When the magnetic Relay (for constant speed compressor) was turned ON manually,
a Magnetic Relay Error may be generated.
After fixing the problem and for canceling the Error, Error Reset (F3-40) will be required after power reset
Indicate or Display:
Outdoor Unit : E. 68. 1
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Error Code : 68
Detective details:
''Current value (constant speed)
constant speed compressor stop command
04-31
3.0A" continues for 5 seconds during