Haier HSU-119M07 Service Manual page 14

TROUBLE SHOOTING
TROUBLE SHOOTING
lights indication
power time run
Sensor is
shorted out
or opened
circuit
Sensor is
shorted out
or opened
circuit
Indoor fan
motor don
t feed back
Data error
or no
EEPROM
Air Conditioner Air Conditioner
reasons ways and means
Check the sensor of
indoor ambient
temperature
resistance value is 0
or ,the sensor is
abnormal.
Check the sensor of
indoor coil pipe
the resistance value
is 0 or
is abnormal.
check whether indoor motor
has 80~170V voltage, if it
has, wiring board is normal,
then check
optical SCR is good, replace
it if it is has flaw; else check
whether there are something
wrong with connecting line
indoor fan motor cpacitor
and coil assembly
Check whether the
EEPROM is installed
properly
9
solutions
if the
Change the
sensor
if
,the sensor Change the
sensor
Change the
whether the
capacitor or
optical SCR
connecting
line or
indoor PCB
Change the
EEPROM
: http://splitoff.ru/tehn-doc.html
Edition:2006/08/10
tools
Multimeter
Multimeter
or
Multimeter
Multimeter
and
electric
iron