“F2” Condenser Temperature Sensor Error; “F3” Outdoor Ambient Temperature Sensor Error - Haier GE APPLIANCES Connect Series Service Manual

Troubleshooting
"F2" Condenser Temperature Sensor Error
Error display:
ODU main board LED display
Error judgment condition and method:
Sample the AD value of temperature sensor through
temperature sensor detecting circuit and judge the
range of AD value, If the sampling AD value exceeds
upper limit and lower limit in 5 seconds continuously,
report the error.
Possible causes:
• Poor contact between temperature sensor and
terminal in main board interface
• Temperature sensor is abnormal
• Detecting circuit is abnormal
Note: Please refer to Appendix 1 for
the relation between temperature and
resistance of temperature sensor.
"F3" Outdoor Ambient Temperature Sensor Error
Error display:
ODU main board LED display
Error judgment condition and method:
Sample the AD value of temperature sensor through
temperature sensor detecting circuit and judge the
range of AD value, If the sampling AD value exceeds
upper limit and lower limit in 5 seconds continuously,
report the error.
Possible causes:
• Poor contact between ambient temperature sensor
and terminal in main board interface
• Ambient temperature sensor is abnormal
• Detecting circuit is abnormal
Note: Please refer to Appendix 1 for
the relation between temperature and
resistance of temperature sensor.
Replace the
outdoor main
board
If it is loosened or
there are foreign
objects, retighten it
after treatment.
CONNECT SERIES SERVICE MANUAL
Start
Malfunction of outdoor coil
temperature sensor
Check if the condenser
temperature sensor on main
board is inserted on the
socket correctly
Yes
Disconnect the
temperature sensor
and measure if its
resistance is normal
Yes
No
Replace the
temperature
sensor
Start
F3 Outdoor ambient
temperature sensor error
Is the terminal between
main board and temperature
sensor loose or any foreign
objects inside the terminal?
Yes
No
Inspect if the
temperature sensor is
Replace the
temperature sensor
No
Correctly insert
the temperature
sensor on the
socket
abnormal
Yes
No
Inspect if the
detecting circuit
is abnormal
Yes
Replace the
main control
board
25