Haier AP075M Service Manual - page 2
1
PLUGANDSOCKET
ARELOOSE
RE-PLUGINGTHE
POWERSUPPLYCORD
AIRCONDITIONER
WON'TCOOL
PROPERLY
AIRCONDITIONER
WON'TSTART
COMPRESSORWON'T
START
TIMERFAILURE
CHANGETHE
PROTECTOR
RUNNINGTEST
RE-CONNECTING
NOPOWER
PROTECTORFAILURE
USEOXYACETYLENEANDPLUS5%
SILVERSOLDERTOWELDTHE
CRACKEDPOINTS
WIRINGISLOOSE
CAPACITORFAILURE
CHANGETHESWITCH
CHANGE THE
CAPACITOR
TESTINGBY
ELECTROSCOPE
POWERTRIPPED
CHECK THEPOWER
SWITCH
REFRIGERANT
LEAKAGE
TROUBLE SHOOTING
THESYSTEM
RUNNINGTHEVACUUM
EVACUATION FORMORE
THAN15MINUTES
CHARGE COOLANT AND
PROCEEDRUNNINGTEST
CHANGE THEAIRCONDITIONERWITH15KG/CM
2
NITROGENGASFROMLOW-PRESSURESIDEAND
DETECTTHELEAKINGPOINTBYSOAP
Please follow these insructions carefully:
Unplug the unit to avoidany danger fromelectric shockbefore disassembling the unitfor
repair.
I f t h e r e is any sound of the refrigerant circulating whenin operation, avoid touching the
cooling coils.
I f y o u n e e d t o p e r f o r m a n y w e l d i n g o r s o l d e r i n g , b e s u r e y o u are in a well ventilated area.
Only a qualified professional should perform any welding on the unit.
When repairing the unit,thespecifications listed in thismanual must bestrictlyadhered
to whenreplacing any components.
When replacing any electrical components they shouldbe factory approved units.
Be s u r e t h a t a n y electricalcomponentsare properly wired and in place.
FLOW CHART FOR INSPECTING AND R EPAIRING THE UNIT
IMPORTANT POINTS ON SERVICE OPERATING SAFETY