Current Sensor 1 Error - Fujitsu Airstage V-II Service Manual

Trouble shooting 38
OUTDOOR UNIT Error Method:

Current Sensor 1 Error

Detective Actuators:
Judgment from value sensed by current
sensor 1 (current sensor for inverter)
* Current sensor 1 is mounted on
Filter PCB (INV)
Forecast of Cause :
1. Filter PCB (INV) to Inverter PCB CT system wiring connector disconnection, open
2. Power supply to Filter PCB (INV) to Inverter PC wiring disconnection, open
3. Filter PCB(INV) defective (Power supply section, current sensor section)
4. Inverter PCB defective
Check Point 1 : Filter PCB(INV) to Inverter PCB CT system wiring connection state
Connector and wiring connection state check
Cable open check
OK
Check Point 2 : Check the wiring (Power supply to Filter PCB (INV) to Inverter PCB)
Connector connection state check
Cable open check
OK
Check Point 3 : Check Filter PCB (INV) and Inverter PCB
Chack Filter PCB (INV) and Inverter PCB.
(Refer to "Sarvise Parts Information 5")
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. 84. 1
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Error Code : 84
Detective details:
"Protection stop by "inverter speed
for 1 min"" was generated 2 times
Sensor value while inverter stopped = maximum was detected
04-46
50rps and sensor value 0A continued