Fujitsu AOU18RLXFW - Troubleshooting without Error Codes

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OUTDOOR UNIT AOU18-24RLXFW OUTDOOR UNIT AOU18-24RLXFW
SAFETY DEVICES10.
Protection form
Model
AOU18RLXFW AOU24RLXFW
Circuit protection
Current fuse
(NEAR THE TERMINAL)
5A 250V
Current fuse
(MAIN PRINTED
CIRCUIT BOARD)
3.15A 250V x 2
Fan motor protection
Thermal protection
program
OFF : 230
+27
°F (110
+15
°C)
-18 -10
ON : 221
+27
°F (105
+15
°C)
-18 -10
High Pressure
Protection
Pressure Switch
OFF : 4.2±0.1MPa
ON : 3.2±0.15MPa
Compressor
protection
Thermal protection program
(COMPRESSOR TEMP.)
OFF : 226°F (108°C)
ON : 176°F (80°C)
Thermal protection program
(DISCHARGE TEMP.)
OFF : 230°F (110°C)
ON : After 7 minutes
Thermal protection program
(OUTDOOR TEMP.)
(Cooling / Dry mode)
OFF : 5°F (-15°C)
ON : 14°F (-10°C)
OFF : -13°F (-25°C)
ON : -4°F (-20°C)