Fujitsu General AC Error Codes



High-SEER 410a Mini Splits Troubleshooting

Fujitsu General AC Error Codes and Troubleshooting

Code Error Contents:

Error CodesMeaning
01Indoor unit doesn’t accept signal from outdoor unit
02Room temperature sensor open
03Room temperature sensor short-circuited
04Indoor heat exchanger temperature sensor open
05Indoor heat exchanger temperature sensor short circuited
06Outdoor heat exchanger temperature sensor
08Power source connection error
09Float switch operated
0AOutdoor temperature sensor error
0cDischarge pipe temperature sensor
11Model abnormal/Indoor EPROM Abnormal
12Indoor fan abnormal
13Outdoor unit doesn’t accept the signal from indoor unit
14Excessive outdoor pressure (permanent stop)
15Compressor temperature sensor
16Pressure switch error
17IPM error
18CT error
19Active filter module (AFM) error
1ACompressor does not operate
1bOutdoor unit fan error
1cCommunication error (inverter to multi controller)
1d2 way valve sensor error
1EExpansion valve error
1FConnection indoor unit error

LED Flash Error Contents:




FlashingProblem
1 flashCommunication error (Indoor unit to Outdoor unit)
2 flashDischarge pipe temperature sensor
3 flashOutdoor heat exchanger temperature sensor
4 flashOutdoor temperature sensor
7 flashCompressor temperature sensor
8 flashHeat sink temperature sensor
9 flashPressure switch abnormal
12 flashIPM error
13 flashCompressor rotor position cannot detect
14 flashCompressor cannot operate/Start up error
15 flashOutdor fan abnormal (upper fan)
16 flashOutdoor fan abnormal (lower fan)

Outdoor Unit Display Error Display:




Fujitsu General Outdoor Unit Display Error Display
Fujitsu General Outdoor Unit Display Error Display
Error CodesCause
11Outdoor communication signal error (Forward transfer signal error)
8Outdoor discharge pipe temperature thermistor error
5Outdoor heat exchanger temperature thermistor error
7Outdoor temperature thermistor error
212-way valve temperature thermistor error
223-way valve temperature thermistor error
12Compressor temperature thermistor error
19Heat sink temperature thermistor error
13Pressure switch error
23Connected indoor unit error
14IPM error
17Compressor rotor location cannot detect(permanent stop)
20Compressor Start-up error (permanent stop)
18Outdoor unit fan motor error
24Main CPU - sub CPU communication error
324-way valve error



Fujitsu AC Standard Error Codes (all indoor units from 2013)
Fujitsu AC Standard Error Codes (all indoor units from 2013)

Wired Remote Controller Error Codes:

Error CodesProblem
00No error
02Model information abnormal
04Power supply frequency abnormal
06EEPROM access error
07EEPROM deletion error
09Room temperature themistor error
0AIndoor unit heat exchanger themistor (middle) error
0bIndoor unit heat exchanger themistor (inlet) error
0CIndoor unit heat exchanger themistor (outlet) error
0dBlower temperature themistor error
11Drain abnormal
12Room temperature abnormal
13Indoor unit fan error
1FTransmission error
20Node setting error
21Parallel communication error
32Outdoor unit error
35Manual auto switch error
41Room error
42Indoor unit Heat Ex. sensor error
51Indoor unit fan motor error
53Water Drain error
50Indoor unit error
62Outdoor unit main PCB error
63Inverter PCB error
65IPM error
71Discharge thermistor error
86Pressure sensor error
97Outdoor unitfan motor1 error
A1Discharge temperature 1 error
A3Compressor temperature error
A5Pressure error 2
J2Unit flow divider error

Fujitsu General AC Troubleshooting

Fujitsu General AC Troubleshooting
Fujitsu General AC Troubleshooting

In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical breaker and consult authorized service personnel. Merely turning off the unit’s power switch will not completely disconnect the unit from the power source. Always be sure to turn off the electrical breaker to ensure that power is completely off.

Before requesting service, perform the following checks:

Symptom: Doesn’t operate immediately:

Problem:

  • If the indoor unit is stopped and then immediately started again, the compressor will not operate for about 3 minutes, in order to prevent fuse blowouts.
  • Whenever the electrical breaker is turned off then on again the protection circuit will operate for about 3 minutes, preventing unit operation during that period.

Symptom: Noise is heard

Problem:

  • During operation or immediately after stopping the unit, the sound of water fl owing in the air conditioner’s piping may be heard. Also, noise may be particularly noticeable for about 2 to 3 minutes after starting operation (sound of refrigerant fl owing).
  • During operation, a slight squeaking sound may be heard. This is the result of minute expansion and contraction of the front panel due to temperature changes.
  • During Heating operation, a sizzling sound may be heard occasional. This sound is produced by the Automatic Defrosting operation.

Symptom: Smells

Problem: Some smell may be emitted from the indoor unit. This smell is the result of room smells (furniture, tobacco, etc.) which have been taken into the indoor unit.

Symptom: Mist or steam is emitted

Problem:




  • During Cooling or Dry operation, a thin mist may be seen emitted from the indoor unit. This results from the sudden Cooling of room air by the cool air emitted from the indoor unit, resulting in condensation and misting.
  • During Heating operation, the outdoor unit’s fan may stop, and steam may be seen rising from the unit. This is due to Automatic Defrosting operation.

Symptom: Airfl ow is weak or stops

Problem:

  • When Heating operation is started, fan speed is temporarily very low, to allow internal parts to warm up.
  • During Heating operation, if the room temperature rises above the temperature setting, the outdoor unit will stop, and the indoor unit will operate at very low fan speed. If you wish to warm the room further, set the temperature for a higher setting.
  • During Heating operation, the indoor unit will temporarily stop operation (Max.15 minutes) as the Automatic Defrosting mode operates. During Automatic Defrosting operation, the OPERATION Indicator Lamp will fl ash.
  • During Dry mode, the indoor unit will operate at low speed; in order to adjust room humidity, the indoor unit’s fan may stop from time to time. Also, the fan may operate at very low speed when adjusting room humidity.
  • During SUPER QUIET operation, the fan will operate at very low speed.
  • In the monitor of AUTO operation, the fan will operate at very low speed.

Symptom: Water is produced from the outdoor unit

Problem: During Heating operation, water may be produced from the outdoor unit due to Automatic Defrosting operation.

Symptom: Doesn’t operate at all

Problem:

  • Has the circuit breaker been turn off?
  • Has there been a power failure?
  • Has a fuse blown out, or a circuit breaker been tripped?
  • Is the intake grille completely closed?
  • Is the timer operating?

Symptom: Poor Cooling (or Heating) performance

Problem:

  • Is the Air Filter dirty?
  • Are the air conditioner’s intake grille or outlet port blocked?
  • Did you adjust the room temperature settings (temperature) correctly?
  • Is there a window or door open?
  • In the case of Cooling operation, is a window allowing bright sunlight to enter? (Close the curtains.)
  • In the case of Cooling operation, are there heating apparatus and computers inside the room, or are there too many people in the room?
  • Has OUTDOOR UNIT LOW NOISE not been set?
  • Is the unit set for SUPER QUIET operation?

Symptom: The unit operates differently from the Remote Controller’s setting

Problem:

  • Are the Remote Controller’s batteries dead?
  • Are the Remote Controller’s batteries loaded properly?

If the problem persists after performing these checks, or if you notice burning smells, or the OPERATION Indicator Lamp and the TIMER Indicator Lamp flashes, and ECONOMY Indicator Lamp flashes fast. Immediately stop operation, turn off the electrical breaker and consult authorized service personnel.

Fujitsu General AC Remote Control
Fujitsu General AC Remote Control

 

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