Idea ISW-10 SF1-DN1, Installation Manual

Page: 62 / 66

- 62 -
line is open or shorted.
4. The sensor is damaged.
A2
Defrost coil temp
Tdef temp sensor
fault
1.The interface between
the sensor and the main
board is loose or detached.
2.The sensor probe comes
off.
3.The sensor connection
line is open or shorted.
4. The sensor is damaged.
1. Check and reinforce the
interface between the sensor and
the main board.
2. Re-fix the sensor probe.
3. Repair the sensor cable.
4. Replace the sensor.
1. 1.
A1
Outdoor ambient
temp Tao temp
sensor fault
1.The interface between
the sensor and the main
board is loose or detached.
2. The sensor probe comes
off.
3.The sensor connection
line is open or shorted.
4.The sensor is damaged.
1.Check and reinforce the interface
between the sensor and the main
board.
2. Re-fix the sensor probe.
3. Repair the sensor cable.
4. Replace the sensor.
A8
Coil temp Tcm temp
sensor fault
1.The interface between
the sensor and the main
board is loose or detached.
2.The sensor probe comes
off.
3.The sensor connection
line is open or shorted.
4.The sensor is damaged.
1.Check and reinforce the interface
between the sensor and the main
board.
2. Re-fix the sensor probe.
3. Repair the sensor cable.
4. Replace the sensor.
Ab
High pressure Pd
sensor fault
1.The interface between
the sensor and the main
board is loose or detached.
2. The sensor probe comes
off.
3.The sensor connection
line is open or shorted.
4. The sensor is damaged.
1. Check and reinforce the
interface between the sensor and
the main board.
2. Re-fix the sensor probe.
3. Repair the sensor cable.
4. Replace the sensor.
H3
outdoor unit
EEPROM fault 1. The memory chip is
damaged;
1. Replace the main control board;
P6
High-pressure switch
disconnect protection
1. The external machine is
dirty and blocked, which
affects the heat exchange;
2,The heat exchanger is
dirty and blocked, affecting
Check the system for
troubleshooting;