Jingeao SC21 - Troubleshooting Guide; Unit Does Not Work; Abnormal Compressor Operation; Compressor Long Running Time

by dry cloth.
11.Troubleshooting guide
problems
Possible cause
Ways to solve
problems
The units does not
work
Bad connection of
plug or fuse burn out
Unplug the plug and
re-connect the plug
to power supply or
replace with a new
fuse
Abnormal operation
of the compressor or
has buzz sound
The power voltage is
out of the rated
range.
Disconnect the
power supply
immediately and
reconnect with it
after normal voltage.
It is necessary to
have a voltage
stabilizer in case of
poor power supply.
Compressor operates
too long time and no
frost on the surface
of the evaporator
Refrigeration system
is at fault (leakage or
blocked)
Send the unit to
service department
for repair
There is frost or ice
on the walls of the
inner cabinet and too
low internal
temperature, the
compressor operates
never stop
Thermostat does not
work
Ask service
department for repair