Chapter 8Trouble shootingand fault detecting
8-1. Frequent problem
Nu
m
fault
phenomenon
Detection method
Maintenance
measures
U
se tools
1
Do not power
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 output
frequency signal
5
、
Enter the mandatory start to detect whether
compressor is working;
Replace
correct
Component
Screwdriver
、
multimeter
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
、
Adjustable 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
