Fujitsu ASYA18LCC - Service Manual

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SERVICEMANUAL

INVERTER

ASYA07LCC

ASYA09LCC

ARCTIC 7LCC

ARCTIC 9LCC

ASYA12LCC

ARCTIC 12LCC

ASYA14LCC

ASYA18LCC

ARCTIC 14LCC

ASYA09LGC

ASYA12LGC

ARCTIC 9LGC

ARCTIC 12LGC

ASYA14LGC

ARCTIC 14LGC

ASYB09LDC

ASYB12LDC

ASYB18LDC

AGYV09LAC

AGYV12LAC

AGYV14LAC

AWYZ14LBC

AWYZ18LBC

AWYZ24LBC

V2-2009

ASY9LSACW

ASY12LSACW

ASY9LSACW

ASY12LSACW

ASY9LSBCW

ASY12LSBCW

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Questions and Answers

P
payneanthonySep 2, 2025
Why Fujitsu ASYA18LCC shows serial reverse transfer error at starting up operation?
- C
  carriedeleonSep 2, 2025
  If your Fujitsu Air Conditioner displays a serial reverse transfer error at startup, it means the indoor unit isn't receiving a signal for 10 seconds after the power relay turns on. Check the indoor/outdoor cable connection. If the wiring is normal, measure the voltage of the outdoor unit terminals and diagnose the defective location.
J
Jennifer SmithAug 31, 2025
What does main relay error mean on Fujitsu ASYA18LCC Air Conditioner?
- Y
  ywalkerAug 31, 2025
  If your Fujitsu Air Conditioner displays a main relay error, it means that after 2 minutes 20 seconds of stopping operation, the signal from the outdoor unit is received even though the main relay is OFF. The main relay might be defective or the Controller PCB might be defective.
D
Danielle RodriguezAug 29, 2025
What causes a room temperature thermistor defective in Fujitsu Air Conditioner?
- K
  Kendra SteinAug 29, 2025
  If your Fujitsu Air Conditioner shows a room temperature thermistor defect, it means the thermistor detected an abnormal temperature when the power was turned on. Check the thermistor resistance value. The controller PCB might be defective.
N
Nicole MckeeAug 28, 2025
What to do if my Fujitsu Air Conditioner has indoor fan speed error?
- J
  jacob11Aug 28, 2025
  If your Fujitsu Air Conditioner displays an indoor fan speed error, it means the indoor fan speed is 1/3 of the target frequency after 56 seconds from starting or changing the fan mode. Here’s what to check: * Check the fan motor connector for looseness or defective contact. * The fan motor might be defective. * The controller PCB might be defective.
T
toddjohnsonAug 27, 2025
What to do if my Fujitsu ASYA18LCC has indoor fan lock error?
- Z
  zwilkersonAug 27, 2025
  If your Fujitsu Air Conditioner displays an indoor fan lock error, it means the indoor fan speed is 0 rpm after 56 seconds from starting or changing the fan mode. Here’s what to check: * Check the fan motor connector for looseness or defective contact. * The fan motor might be defective. * The controller PCB might be defective.
C
Carol OrtegaAug 25, 2025
What causes IPM protection in my Fujitsu ASYA18LCC Air Conditioner?
- C
  christine37Aug 25, 2025
  If your Fujitsu Air Conditioner is showing IPM protection, it indicates that an abnormal current value has been detected. Here's what you should check: * Ensure that heat radiation is not blocked at the inlet or outlet. * Verify that the outdoor fan is functioning correctly and rotating. * The controller PCB might be defective.
C
carla50Aug 22, 2025
What to do if my Fujitsu Air Conditioner shows excessive high pressure protection on cooling?
- C
  courtney35Aug 23, 2025
  If your Fujitsu Air Conditioner is showing an excessive high pressure protection error during cooling, check the following: * Ensure that heat radiation is not blocked at the inlet or outlet. * Verify that the outdoor fan is functioning correctly and rotating. * Check for any issues with the refrigeration cycle.