Haier HRF-521DS6 - Page 21

SERVICE MANUAL
Model: HRF-521DS6
21
Issue 2016-09-07
REF. Ref 1609S025V0.
abnormal
temperature
3、Detecting frozen sensor terminal of main control
panel contact well;
5
Display
panel shows
E0
1、Detecting top hinge of freezer door connecting
terminal, main control panel and display panel
terminal contact well;
2、Detecting main control panel and display panel
match well;
3、Detecting dynatron is normal around display panel
and main control panel connector;
1 、 check and
repair circuit；
2、replace
applicable main
control panel
and/or display
panel
3 、 check and
repair main
control panel and
display panel
Screwdriver、
multimeter
6 Display Ed
1、Detecting defrosting fuse is not open;
2、Detecting defrosting sensor parameters are
normal;
3、Detecting defrosting fuse is normal;
4、Detecting contact of above components`
connector is normal;
5、Enter mandatory defrosting, detecting heating
fuse heat up, and main control panel has output
voltage;
6、If above condition is normal, because defrosting
sensor to sense the temperature is not in time, you
can move defrosting sensor`s location down to abou
t
10cm.
Note: displaying Ed means defrosting system is bad,
and not means certain unit is bad, but as long as the
refrigerator Power down and power on, the fault
code disappeared; Display panel display normally,
but do not means repaired; If you do not solve the
problem, it will show again
after a day（When you maintain Must pay attention to
avoid a service being not in place thoroughly）.
Replace fault
part, t adjust
terminal
Screwdriver、
multimeter
7 Noise loudly
1、Check noise part, according to the noise portion
for detecting the freezing fan motor is working
normally;
2、Checking fan bracket is secure, and evaporator
pipe is not mutually touch;
3、Detecting compressor floor casters is not
resonant.
4、Detecting compressor condenser pipe and muffle
r
is not mutual touch;
5、Evaporator may send the ice cracked voice in the
1 、 check and
repair fan motor
2、Reinstall and
fix fan motor,
adjust vaporizer
pipeline and add
vibration
attenuation mud.
3、Adjust the
bottom seat,
Screwdriver、
multimeter