on 
1、Detect whether main control panel, display panel 
and frequency conversion panel is matching ; 
2、detect whether frequency conversion panel and 
main control panel is connected properly; 
3、Detect whether Connecting line between 
frequency conversion panel and compressor is 
normal; 
4 、 Detect whether main control panel outpu
2 
Door body is 
uneven 
 
Side by side series: 
1、Minor unevenness can adjust bottom foot; 
2、  Large height difference can increase the gasket 
in the lower hinge parts; 
3、
djustable hinge door body can adjust hinge to be
even; 
Adjust & Repair 
Screwdriver、
multimeter 、
poke rod 
3 
Fridge is in 
deep freeze 
cooling 
1、Closing the fridge air outlet, detect air outlet 
position and assembly whether cold air blowing 
around, if that is not tightly sealed; 
2、Take fridge electric air outlet apart, repeatedly 
switching freezer, detect whether air door can freely 
switch on/off, and close closely; 
3、If the Department does not move, you can test 
damper wiring terminal position and the main control 
panel ,and check every line`s conducting state 
according to the color; 
4、If line is normal but throttle can`t act, that means 
main control panel or throttle fault; use the normal 
throttle or main control panel for testing to confirm 
final faulted piece; 
5、The above detection without problems, test 
whether parameters of fridge sensor 1 are normal. 
1、If throttle is not 
tightly sealed, 
seal lax part with 
Sponge article; 
2、If padlock is 
not tightly closed, 
generally throttle 
is bad; 
3、maintain  line 
section; 
4、Replace the 
defective part; 
5 、 Replace 
sensor. 
Screwdriver、
multimeter 
4 
Sometimes 
panel shows 
fault code,  or 
displays 
1、Check connector between freezer sensor and the
box body, and the internal terminal backing out, 
ensure contact well; 
2、Test parameter of freezer sensor; 
If terminal take 
off, adjust and 
repair internal 
terminal 
Screwdriver