Fujitsu AU G12LVLB Series Service Instruction page 50

For AR*G**LSLAP
Trouble shooting 7
INDOOR UNIT Error Method:
Connection Unit Number Error
(Indoor unit in Wired RC Error)
Detective Actuators:
Wired remote controller ( 2-Wire )
Indoor unit Controller PCB circuit
Forecast of Cause:
1. Wrong wiring / Number of I.U, RC in RCgroup 2. Indoor unit controller PCB defective
Check Point 1 : Wire installation
Wrong number of connecting indoor unit
Check Point 2 : Check Indoor unit controller PCB
Check if controller PCB damage
Check if controller PCB and check the Error after setting remote controller address
Indicate or Display:
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 2 time Flash, Timer lamp: 9 time Flash
Economy lamp : Continuous flash.
ERROR CODE : [E : 29]
Detective details:
When the number of connecting indoor units are out of specified rule.
02-17