Fujitsu R407C Service Manual page 87

ERROR
ERROR
CODE
1. Error occurrence condition
07 EEPROM
deletion error
2. Relevant operation
1) Relevant indoor unit is
2) Error is displayed on LED of
3. Clearance
09 Room
temperature
thermistor error
Heat exchanger
1. Error occurrence condition
0A
thermistor
(middle) error
2. Relevant operation
3. Clearance
0B Heat exchanger
thermistor
(inlet) error
0C Heat exchanger
thermistor
(outlet) error
ERROR CONTENTS
After indoor unit operation is
started, error for model infor-
mation, which is memorized
on EEPROM, occurs.
stopped.
indoor unit.
Model information, which is
memorized on EEPROM
is recovered.
1. Error occurrence condition
The condition of thermistor,
which is short or open, is
detected.
2. Relevant operation
Indoor unit stopped. Error is
displayed on LED of indoor
unit and output to
communication bus line.
3. Clearance
Thermistor detection is
other than short or open.
The condition of thermistor,
which is short or open, is
detected.
Indoor unit is stopped. Error
is displayed on LED of
indoor unit and output to
communication bus line.
Thermistor detection is
other than short or open.
1. Error occurrence condition
The condition of thermistor,
which is short or open, is
detected.
2. Relevant operation
Error is displayed on LED
of indoor unit.
3. Clearance
Thermistor detection is
other than short or open.
1. Error occurrence condition
The condition of thermistor,
which is short or open, is
detected.
2. Relevant operation
Error is displayed on LED
of indoor unit.
3. Clearance
Thermistor detection is
other than short or open.
CAUSE
Model information is not
memorized, or erased because
of some reasons.
1. Connector connection is
faulty.
2. Room Temperature
thermistor is faulty.
1. Connector connection is
faulty.
2. Heat exchanger thermistor
(middle) is faulty.
1. Connector connection is
faulty.
2. Heat exchanger thermistor
(inlet) is faulty.
1. Connector connection is
faulty.
2. Heat exchanger thermistor
(outlet) is faulty.
05-11
COUNTERMEASURE
Replace control printed circuit board
of indoor unit.
1. Check if the connector of Room
temperature thermistor loosens or
comes off.
2. Check the resistance of Room
temperature thermistor. If it's not
normal, replace the thermistor.
1. Check if the connector of Heat
exchanger thermistor (middle)
loosens or comes off.
2. Check the resistance of heat
exchanger thermistor (middle). If it's
not normal, replace thermistor.
1. Check if the connector of heat
exchanger thermistor (inlet) loosens
or comes off.
2. Check the resistance of heat
exchanger thermistor (inlet). If it's
not normal, replace thermistor.
1. Check if the connector of heat
exchanger thermistor (outlet) loosens
or comes off.
2. Check the resistance of heat
exchanger thermistor (outlet). If it's
not normal, replace thermistor.