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Compressor too hot, the stop often occur
Compressor too hot,
just start and stop at
once, or the stop
often occur
Check whether the outdoor unit is not mounted
properly such as outlet blockage; bad ventilation
or directly under sunlight
no
Ambient temperature is too high
no
Check if the filter or the outdoor condenser dirty
no
Check if the indoor and outdoor fans do not run
or run too slowly and whether the outlet airflow
is normal
no
Check if the cooling system blockage, the frost
on the capillary don't melt
no
The power is abnormal
no
Check if the system operating pressure is normal
to confirm whether the refrigerant is leakage or mix
with air (normal: 0.4-0.6MPa for cooling system,
1.6-2.4 MPa for heating system)
no
Check the breadboards of indoor and outdoor units
and the power supply circuit assembly
no
Check the U ;V; W output of the outdoor power
module for detail, see "Power Module protection"
no
Check if the compressor is jammed or the
wire-wound resistance is open or short circuit
yes
Change the mounting position
yes
For safe use
yes
Clean them
Check if the power supply circuit for
yes
motor on the controller is normal or
replace the motor
yes
Replace blockage component
yes
Add voltahe regulator,etc.
yes
Recharge refrigerant
yes
Change the assembly or main PCB
yes
Change the power module
yes
Change the compressor
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