Haier H2SM-(9+12)HV03/R2 User Manual

Number
Trouble
phenomenon
Description
Parts that may appear problems
and the Cause
Prepared parts
and tools
Applicable
machine
1
Not work with
remote
controller
Use the
remote
controller to
boot
machine
and it
doesn’t
work
7805,transformer, piezo
resistance, fuse,remote controller,
receiver. If it can be booted by
using manual emergency switch,
that indicate the power cable and
wiring board are electriferousˈ
remote controller or receiver isn’t
well˗else check whether piezo
resistance ,fuse and 7805 are
wellDŽ
7805,transfor
mer, fuse,
piezo
resistance,
remote
controller,
receive,avome
ter
invariable
frequency
split unit
2
Outdoor fan
motor
doesn’t work
Outdoor
fan motor
doesn’t run
when
cooling or
heating
Optical SCR, indoor P.C. board.
Check the 2# and 4# terminal
block of indoor unit, if it has 220V
voltage, wiring board is normal,
then check whether the optical
SCR is good, replace it if it has
flaw˗else check whether there are
something wrong with connecting
lineˈoutdoor fan motor capacitor
and coil assemblyDŽ
Optical SCR,
indoor P.C.
board ,
outdoor fan
motor
capacitor,
outdoor fan
motor,avomet
er
invariable
frequency
split unit
3
Indoor fan
motor
doesn’t work
Indoor fan
motor
doesn’t run
when
cooling or
heating
Optical SCRˈindoor P.C. board DŽ
Check whether indoor fan motor
has 80-170V voltageˈif it hasˈ
wiring board is normal, then check
whether the optical SCR is good,
replace it if it has flaw˗else check
whether there are something
wrong with connecting lineˈindoor
fan motor capacitor and coil
assemblyDŽ
Optical SCRˈ
indoor P.C.
board , indoor
fan motor
capacitor,
indoor fan
motor,avomet
er
invariable
frequency
split unit
4 Not heating
Cooling but
not heating
Indoor P.C. board , four-way valve
coil, body of four-way valveˈCheck
the 2# and 3# terminal block of
indoor unit, if it has 220V voltage
when heating but no when cooling,
then P.C. board is abnormal; else
check whether four-way valve coil
and the body of four-way valve are
damagedDŽ
Indoor P.C.
board ,
four-way valve
coil, body of
four-way
valve,
avometer
invariable
frequency
split unit
Air Conditioner

Edition:2006/1/10
52
Abnormality Diagnosing

Haier H2SM-(9+12)HV03/R2 Specifications

General

Brand	Haier
Model	H2SM-(9+12)HV03/R2
Category	Air Conditioner
Language	English