Fujitsu AOY90 User Manual

ERROR
CONTENTS
ERROR CAUSE
REMEDY
ERROR
CODE
07
1. Generation condition.
Error in model information
memorized at EEPROM after
indoor unit started.
2. Corresponding operation.
1) Relevant indoor unit stopped
2) Error display to indoor unit
LED.
3. Reset condition
Model information
memorized at EEPROM
restored to normal.
1. Generation condition.
Thermistor short or open
detected.
2. Corresponding operation.
Indoor unit stopped, error
display to indoor unit LED,
and error output to
communication bus line.
3. Reset condition.
Thermistor detection value
other than short or open.
Replace indoor unit control PC board.
1. Check for loose or dislodged thermistor
connector.
2. Check temperature thermistor
resistance. If abnormal, replace
thermistor.
Model information not
memorized, or erased for some
reason.
1. Connector connection faulty.
2.Temperature thermistor faulty.
EEPROM
deletion error
09 Room tempera-
ture thermistor
error
1. Generation condition.
Thermistor short or open
detected.
2. Corresponding operation.
Indoor unit stopped, error
display to indoor unit LED,
and error output to
communication bus line.
3. Reset condition.
Thermistor detection value
other than short or open.
0A Indoor unit heat
exchanger ther-
mistor error
(middle)error
1. Check for loose or dislodged heat
exchanger thermistor(middle)
connector.
2. Check resistance of heat exchanger
thermistor(middle). If abnormal,
replace thermistor.
1. Connector connection faulty.
2. Heat exchanger thermistor
(middle) faulty.
2. Check resistance of heat exchanger
thermistor(inlet). If abnormal, replace
thermistor.
2. Heat exchanger thermistor
(inlet)faulty.
1. Generation condition.
Thermistor short or open
detected.
2. Corresponding operation.
Error display to indoor unit
LED.
3. Reset condition.
Thermistor detection value
other than short or open.
0B Indoor unit heat
exchanger ther-
mistor(inlet)error
1. Check for loose or dislodged heat
exchanger thermistor(inlet) connector.
1. Connector connection faulty.
2. Check resistance of heat exchanger
thermistor(outlet). If abnormal, replace
thermistor.
2. Heat exchanger thermistor
(outlet)faulty.
1. Generation condition.
Thermistor short or open
detected.
2. Corresponding operation.
Error display to indoor unit
LED.
3. Reset condition.
Thermistor detection value
other than short or open.
0C Indoor unit heat
exchanger ther-
mistor(outlet)
error
1. Check for loose or dislodged heat
exchanger thermistor(outlet) connector.
1. Connector connection faulty.
– 92 –

Fujitsu AOY90 Specifications

General

Brand	Fujitsu
Model	AOY90
Category	Air Conditioner
Language	English