Fujitsu AUXB04GALH Service Manual page 136

Trouble shooting 58
OUTDOOR UNIT Error Method:
Outdoor Unit Fan Motor 1 Temp. Abnormal
Outdoor Unit Fan Motor 2 Temp. Abnormal
Detective Actuators:
Outdoor unit fan
1. Rotation obstructed by foreign matter
Forecast of Cause :
2. Ventilation obstructed by heat exchange foreign matter
3. Excessive ambient temperature rise
4. Static pressure setting incorrect, specifIed static pressure value exceeded
5. Fan motor defective (internal PCB defective)
Check Point 1 : Check fan rotation state
Check for the absence of foreign matter around the fan
OK
Check Point 2 : Check for obstruction of ventilation by heat exchange foreign matter
Check for foreign matter on heat exchanger
OK
Check Point 3 : Check the ambient temperature
Ambient temperature not raised by the effect of other heat sources?
Discharged air not sucked in?
OK
Check Point 4 : Check the static pressure
Check if static pressure is set correctly.
Check if static pressure is not higher than the specified value.
OK
Check Point 5 : Replace the fan motor
Check if fan can be rotated by hand.
Motor winding resistance check
Motor operation check
Indicate or Display:
E. 97.5 (E.98.5)
Outdoor Unit : E. 97. 5 (FAN1), E. 98. 5 (FAN2)
Indoor Unit
Error Code
Detective details:
Protection stop by speed
after fan operation command issued generated 3 times within 3 hours.
: Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
: 97 (FAN1), 98 (FAN2)
220rpm after 60 seconds have elapsed
04-66