Haier HRF520FHS - T Mode Testing Procedure

34
SERVICE MANUAL
NO
Items
Temperature
display area
Content
Control Methods
1
Normal
Display
temperature
value
Display current
temperature value of
each sensor
/
1
RT-SNR
bad
F2
Short circuit or
disconnection of
RT-SNR
Control according to the
environmental temperature scope of
23℃≤RT＜28℃
2
R-SNR
bad
F3
Short circuit or
disconnection of
R-SNR
Defrost after 30 minutes, the fan and the
air switch continuous operation, after that
the PC air switch go into 10 minutes off
the 10 minute cycle
3
F-SNR
bad
F4
Short circuit or
disconnection of
F-SNR
Compressor enters the circulation
state under which it opens for 15
minutes and then closes for 15
minutes every 30 minutes
4
S-SNR
bad
F5
Short circuit or
disconnection of
S-SNR
PC air switch go into 10 minutes off the
20 minute cycle
5
D-SNR
bad
F6
Short circuit or
disconnection of
D-SNR
Automatic defrosting procedure is
carried out normally, and the
defrosting time is 30 minutes.
6
Bad
communication
E0
Display board and
power board can not
be connected for 2
minutes
/
7
Defrosting fault
Ed
Temperature of
defrosting sensor can
not reach 12 degrees
in 90 minutes after
rising
/
8
F-FAN
unhealthy
E1
/
/
9
Humidity
sensor fault
EH
Short circuit or
disconnection of
D-SNR
according to humidity 80% control
【2】T mode
Entering mode: Click the TEST button (or open the door, locked, press the "Fridge"
button, press the "My zone" button on the 5).
Exit mode: Under the condition of T4 click the TEST button (or T4, open the door, locked, press "Lock"