Fujitsu AUXB04GALH Service Manual page 117

Trouble shooting 39
OUTDOOR UNIT Error Method:
Rush Current Limiting Resistor
Temp Rise Protection
Detective Actuators:
Inverter PCB
Forecast of Cause :
1. The wire between the Power PCB (CN804) and the Inverter PCB (CN330) unplugged.
2. The Relay (K801) defected.
3. Resistancxe (R806) open circuit.
4. Inverter PCB defected.
Check Point 1 : Check the wiring
Connector and wiring connection state check
Cable open check
OK
Check Point 2 : Check Relay (K801) operation
Check click sound of Relay (K801)
When the Relay (K801) did not operate, replace the Power PCB.
OK
Check Point 3 : Check Resistance (R806)
Check the Resistance is not open circuit
When the Relsistance is open circuit, replace the the Power PCB.
OK
Check Point 3 : Check Inverter PCB, Filter PCB, Power PCB
Refer to the Service parts information 4
After fixing the problem and for canceling the Error, Error Reset (F3-40) will be required after power reset
Indicate or Display:
E68. 2
Outdoor Unit : E. 6 8. 2
Indoor Unit
Error Code
Detective details:
"Protection stop by "Rush current limiting resistor temperature rise detection''
of inverter PCB" was generated 2 times.
Power PCB (CN804) and the Inverter PCB (CN330)
04-47
: Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
: 9 U / 6 8