Fujitsu General AC Error Codes

 High-SEER 410a Mini Splits Troubleshooting

Fujitsu General AC Error Codes and Troubleshooting

Code Error Contents:

Error Codes	Meaning
01	Indoor unit doesn’t accept signal from outdoor unit
02	Room temperature sensor open
03	Room temperature sensor short-circuited
04	Indoor heat exchanger temperature sensor open
05	Indoor heat exchanger temperature sensor short circuited
06	Outdoor heat exchanger temperature sensor
08	Power source connection error
09	Float switch operated
0A	Outdoor temperature sensor error
0c	Discharge pipe temperature sensor
11	Model abnormal/Indoor EPROM Abnormal
12	Indoor fan abnormal
13	Outdoor unit doesn’t accept the signal from indoor unit
14	Excessive outdoor pressure (permanent stop)
15	Compressor temperature sensor
16	Pressure switch error
17	IPM error
18	CT error
19	Active filter module (AFM) error
1A	Compressor does not operate
1b	Outdoor unit fan error
1c	Communication error (inverter to multi controller)
1d	2 way valve sensor error
1E	Expansion valve error
1F	Connection indoor unit error

LED Flash Error Contents:

Flashing	Problem
1 flash	Communication error (Indoor unit to Outdoor unit)
2 flash	Discharge pipe temperature sensor
3 flash	Outdoor heat exchanger temperature sensor
4 flash	Outdoor temperature sensor
7 flash	Compressor temperature sensor
8 flash	Heat sink temperature sensor
9 flash	Pressure switch abnormal
12 flash	IPM error
13 flash	Compressor rotor position cannot detect
14 flash	Compressor cannot operate/Start up error
15 flash	Outdor fan abnormal (upper fan)
16 flash	Outdoor fan abnormal (lower fan)

Outdoor Unit Display Error Display:

Fujitsu General Outdoor Unit Display Error Display

Error Codes	Cause
11	Outdoor communication signal error (Forward transfer signal error)
8	Outdoor discharge pipe temperature thermistor error
5	Outdoor heat exchanger temperature thermistor error
7	Outdoor temperature thermistor error
21	2-way valve temperature thermistor error
22	3-way valve temperature thermistor error
12	Compressor temperature thermistor error
19	Heat sink temperature thermistor error
13	Pressure switch error
23	Connected indoor unit error
14	IPM error
17	Compressor rotor location cannot detect(permanent stop)
20	Compressor Start-up error (permanent stop)
18	Outdoor unit fan motor error
24	Main CPU - sub CPU communication error
32	4-way valve error

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

Wired Remote Controller Error Codes:

Error Codes	Problem
00	No error
02	Model information abnormal
04	Power supply frequency abnormal
06	EEPROM access error
07	EEPROM deletion error
09	Room temperature themistor error
0A	Indoor unit heat exchanger themistor (middle) error
0b	Indoor unit heat exchanger themistor (inlet) error
0C	Indoor unit heat exchanger themistor (outlet) error
0d	Blower temperature themistor error
11	Drain abnormal
12	Room temperature abnormal
13	Indoor unit fan error
1F	Transmission error
20	Node setting error
21	Parallel communication error
32	Outdoor unit error
35	Manual auto switch error
41	Room error
42	Indoor unit Heat Ex. sensor error
51	Indoor unit fan motor error
53	Water Drain error
50	Indoor unit error
62	Outdoor unit main PCB error
63	Inverter PCB error
65	IPM error
71	Discharge thermistor error
86	Pressure sensor error
97	Outdoor unitfan motor1 error
A1	Discharge temperature 1 error
A3	Compressor temperature error
A5	Pressure error 2
J2	Unit flow divider error

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 Manual PDF

source: https://www.fujitsugeneral.com