Fujitsu AUXB04GALH Service Manual page 134

Trouble shooting 56
OUTDOOR UNIT Error Method:
Outdoor Unit Fan Motor 1(2)
Lock Error - Start up Error -
Detective Actuators:
Outdoor unit fan
Forecast of Cause :
1. Rotation obstruction by foreign matter
2. Motor wiring, connector disconnection, open
3. Fan motor defective (winding open, lock)
4. Main PCB defective (drive circuit, speed detection circuit)
Check Point 1 : Fan rotation state check
Check for the absence of foreign matter around the fan
OK
Check Point 2 : Check the motor wiring, connector disconnection, open
Check for motor wiring connector disconnection, open.
OK
Check Point 3 : Fan motor defective
Check if fan can be rotated by hand.
Motor winding resistance check
Motor operation check (Refer to the service parts information 19)
OK
Check Point 4 : Check Main PCB
Drive circuit output check ( Between Pin No.4 and Pin No.5 on CN102/CN150 : DC 13.6 - 16.5 V )
Check if speed can be detected.
>>If replace Main PCB and
Indicate or Display:
E. 97.1 (E 98.1)
Outdoor Unit : E. 97. 1 ( FAN 1 ) , E. 98. 1 ( FAN 2 )
Indoor Unit
Error Code
Detective details:
"Protection stop by "fan speed
command issued" was generated consecutively 15 times
* The compressor is protection stopped every time fan protection stop has
been generated 3 times.
and set up orignal address
: Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
: 97 ( FAN 1 ) , 98 ( FAN 2 )
100rpm" 20 seconds after fan operation
,
04-64