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DIAGNOSTIC CODES
No.
7
8
9
10
11
12
13
Description
If indoor unit detects the condensate overflow switch warning for
8-sec successively, the system will enter condensate overflow
protection. The unit will shut off and will not recover automatically.
Switch unit off and then switch it on to eliminate this malfunction.
If indoor unit detects the indoor ambient temperature sensor is open
circuit or short circuit for 5-sec successively, indoor ambient temp.
sensor malfunction will be reported. The unit can automatically
resume operation after the malfunction disappears. If indoor ambient
temperature sensor malfunction occurs in fan mode, only the error
code is displayed and the indoor unit will operate normally.
If indoor unit detects the evaporator temperature sensor is open
circuit or short circuit for 5-sec successively, evaporator temperature
sensor malfunction will be reported. The unit can automatically
resume operation after the malfunction disappears. If evaporator
temperature sensor malfunction occurs in fan mode, only the error
code is displayed and the indoor unit will operate normally.
If outdoor unit detects the condenser coil temperature sensor open
circuit or short circuit for 5-sec successively, condenser coil temperature
sensor malfunction will be reported. The unit can automatically
resume operation after the malfunction disappears. If condenser
temperature sensor malfunction occurs in fan mode, only the error
code is displayed and the indoor unit will operate normally.
If outdoor unit detects the outdoor ambient temperature sensor
open circuit or short circuit for 5-sec successively, outdoor ambient
temperature sensor malfunction will be reported. The unit can
automatically resume operation after the malfunction disappears.
If outdoor ambient temperature sensor malfunction occurs in fan
mode, only the error code is displayed and the indoor unit will
operate normally.
If outdoor unit detects the compressor discharge temperature
sensor is open circuit or short circuit for 5-sec successively after
the compressor has been operating for 3-min, outdoor discharge
temperature sensor malfunction will be reported. The unit can
automatically resume operation after the malfunction disappears.
If the wired Tether Controller detects open circuit or short circuit
of its temperature sensor for 5-sec successively, wired controller
temperature sensor malfunction will be reported.
Error
Code
E9
F0
F1
F2
F3
F4
F5
Malfunction
Name
Condensate
Overflow
Protection
Indoor Ambient
Temperature
Sensor at
Return Air Inlet
Malfunction
Indoor
Evaporator Coil
Temperature
Sensor
Malfunction
Indoor
Condenser Coil
Temperature
Sensor
Malfunction
Outdoor
Ambient
Temperature
Sensor
Malfunction
Compressor
Discharge
Temperature
Sensor
Malfunction
Wired
Controller
Temperature
Sensor
Malfunction
Origin of
Malfunction
Overflow
Switch
Indoor
Ambient
Temperature
Sensor
Evaporator
Coil
Temperature
Sensor
Condenser
Coil
Temperature
Sensor
Outdoor
Ambient
Temperature
Sensor
Compressor
Discharge
Temperature
Sensor
Wired
Tether
Controller
Temperature
Sensor
Error Codes
32
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