Haier DW-40L92 Service Manual page 14

3 Temperature display function
 The actual temperature displayed is integer. The measured value is rounded off to integer. in
normal situation, the temperature shall not hop, with all temperature variable being ±1 /min;
 The display range is from +34
with temperature lower than -45 , displaying "LL".
4 Quick-freeze setup function
Press quick-freeze button to light indicating light SF, indicating that the refrigerator is in operation;

press the button again to release the status, or it may be released automatically after three hours.
Temperature can not be set under quick-freezing status;
5 Overheat alarming function
 When the actual temperature sensed by the sensor is higher +5
temperature, the overheat alarming light will flicker (with interval of 1S), accompanies by buzzing (with
interval of 0.5S). Press the buzzing releasing button to release buzzing; but the red light will keep on
flickering (press again can not recover buzzing. It is only when the temperature is within +5
lower than set temperature or cut the power, the buzzing releasing button can reset to recover buzzing
function).
 Note: if the freezing sensor is in error, the red light may keep on flickering with interval of 1S and
alarming fail.
6 Recovery processing and error display of freezing sensor
 When the freezing sensor is in error (short circuit or open circuit), the temperature value displayed
will be "F1"; the frozen food cabinet enters protecting mode and compressor is in fixed alternation of
20min on and 5min off with alarming in failure; if the refrigerator is in quick-freeze status, quit (the
corresponding light will be off).
7 Break down memory function
 When the frozen food cabinet is broken down and electrified again, the memory function can
operate according to status set before breaking down.
 Display control>quick freeze>normal control
8 Temperature adjustment principle and alignment
This machine adopts microcomputer controlled temperature control system to control on-off of the press.
In electrified condition, the screen may display current temperature. If you want to change the set
temperature, for example, change from -30
Press both " " and " " for 3 seconds, the set temperature starts flickering. Press " " once, the
∧
temperature will decrease by 1
temperature will increase by 1
second operation, quit the setting status back the normal temperature display.
Press "quick-freeze", " " and " " simultaneously for 5 seconds to align difference between displayed
temperature and set temperature at certain point, with aligning temperature being ±5 . If the displayed
temperature is -40 ℃
-35 , vice versa.
℃
Press alarm, cancel and temperature set for 10 seconds, the screen display HS. Press two temperature
setting buttons simultaneously, the number on screen flickers; press " " and " " to set
temperature and then loosen. It will quit automatically in 3 seconds and the screen now displays LS.
Press two temperature setting buttons simultaneously, the number on screen flickers; press " " and " "
to set lowest temperature and then loosen. It will quit automatically in 3 seconds.
to
℃
℃
∨
until it reaches
℃
until it reaches
℃
△ ▽
and temperature of certain poin
-45 , with temperature higher than +34 , displaying "HH";
℃
F1 display >temperature display
to -35 , please operate as following:
℃ ℃
-40 , and then press back to
℃
-10 , and then press back to
℃
t is -35 , enter +5 ℃
14 / 25
℃
℃
higher or lower than set
℃
℃
∧
-10 ; press " " once, the
℃ ∨
-40 ; if there is no 5
℃
℃
℃ to make display temperature
△ ▽
△
upper or
highest
▽