Haier AS35S2SD1FA-CL Service Manual

Seivice diagnosis47 Domestic air conditioner10.4.9 Overheat Protection For Discharge TemperatureOutdoor display: LED1 flash 8 timesThe Discharge temperature control is checked with the temperature being detectedby the Discharge pipe thermistorwhen the compressor discharge temperature is above 110ć■ Electronic expansion valve defective■ Faulty thermistor■ Faulty PCB* Caution Be sure to turn off power switch before connect or disconnect connector,or else parts damage may be occurred.Electrify the machine again and turn it on with the remote controller,then measure the temperature at the exhaust temperature sensor ofthe compressor on the outdoor unitThe temperature exceeds110 ć shortly after themachine starts up?1) The cryogen may have been leaked duringinstallation, or there may be leakage in the pipingsystem.2) There may be other causes to make the exhausttemperature too high.Malfunctions occur after running for some time eventhough the measured temperature is below 110ć. Pullout the exhaust sensor and measure its resistance atstandard temperatures according to theresistance-temperature tableThe results deviatemuch?The sensor is damaged. Replace the sensorwith a new one.The outdoor mainboard is damaged and needs bereplacedYESNONOYESTroubleshootingMalfunctionDetection ConditionsSupposed CausesMethod ofMalfunction Detection