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