Rush Current Limiting Resistor Temp Rise Protection - Fujitsu Airstage V-II Service Manual

Trouble shooting 24
OUTDOOR UNIT Error Method:
Rush Current Limiting Resistor
Temp Rise Protection
Detective Actuators:
Inverter PCB
Forecast of Cause :
1. Magnetic relay (for INV) coil side wiring disconnection, open
2. Power supply to Filter PCB (INV) to Inverter PCB wiring disconnection, open
3. Magnetic relay activation circuit defective
6. Main PCB output 230 VAC on CN130 defective
Check Point 1 : Check the magnetic relay (for invertert) coil side wiring
Connector and wiring connection state check
Cable open check
OK
Check Point 2 : Check Power supply to Filter PCB (INV) to inverter PCB wiring
Connector and wiring connection state check
Cable open check
OK
Chec Point 3-1 : Magnetic relay activation circuit
Chack the DC Voltage (12V) of
OK
Chec Point 3-2 : Magnetic relay activation circuit
Chack the DC Voltage (12V) of
OK
Check Point 4 :
Main PCB output 230 V for Magnetic relay
Check the AC230V of CN130 on Main PCB
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. 2
Indoor Unit
Error Code
Detective details:
"Protection stop by "Rush current limiting resistor temperature rise
detection'' of inverter PCB" was generated 2 times.
Main PCB defective (output 230VAC on CN130 for Magnetic relay (INV) defective)
CN808 on
INVERTER PCB
CN138 on Main P
CB
: Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
: 68
NG
Replace Inverter PCB
If replace Inverter PCB, Refer to 06-04 Inverter PCB Removal
>>
NG
Replace Main PCB
If replace Main PCB, Refer to 06-03 Main PCB Removal
>>
04-32