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35
DIAGNOSTIC CODES
No.
11
12
13
14
15
16
Description
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 Programmable Controller detects open circuit or
short circuit of its temperature sensor for 5-sec successively,
wired controller
temperature sensor malfunction will be
reported.
If the memory chip of outdoor drive circuit board fails, the unit will
not start. The unit will not recover automatically. If thermo junction
cannot be eliminated after switching off the unit and then energizing
the unit several times, replace the outdoor drive circuit board.
If outdoor unit detects the compressor overload switch open within
3-sec successively, the unit will report compressor overload protection.
If the fault occurs successively 3 times, the unit will not recover
automatically. Switch off the unit or re-energize the unit to eliminate
this protection.
If indoor unit detects the evaporator coil temperature is higher
than protective temp. value, the unit will report overload protection.
The unit will restart operation after evaporator temperature is lower
than the protective temp. value and the compressor is stopped for
3-minutes. If the protection occurs over 6 times, the unit will not
recover automatically. Switch off the unit or re-energize the unit
to eliminate this protection.
Error
Code
F3
F4
F5
ee
H3
H4
Malfunction
Name
Outdoor
Ambient
Temperature
Sensor
Malfunction
Compressor
Discharge
Temperature
Sensor
Malfunction
Wired
Controller
Temperature
Sensor
Malfunction
Outdoor
Drive
Memory Chip
Malfunction
Compressor
Overload
Protection
Overload
Protection
Origin of
Malfunction
Outdoor
Ambient
Temperature
Sensor
Compressor
Discharge
Temperature
Sensor
Wired
Controller
Temperature
Sensor
Outdoor Drive
Board
Compressor
Overload
Switch
Evaporator
Temperature,
Condenser
Temperature
Error Codes
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