Fujitsu ASU30RLE Service Instruction page 86

SERVICE PARTS INFORMATION 6
Heater unit
Test 1 : Check Connections
Check connection of connector
( Loose connector or open cable )
THERMOSTAT
BLACK
WHITE
1 2 3 4
1 2 3 4
CN9
Test 2 : Check electrical components
Check Check Fuses.
>> If Fuse is open, check connection, and replace Fuse.
Test 3 : Check Heater wire.
Remove connector, check resistance of Heater wire.
e r i w Resistance value
Black - White 320.7 - 367.3
If Resistance value is abnormal, replace Heater Unit.
HEATER
FUSE AC250V 5A
d a e R
at 77°F (25°C)
02-50