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• Hi..Thanks for this information..Im really interested about it..What happened if the suction line is icing? Also,the compressor is not defected,the filters are cleaned but it gives less cool to our room.

  • hi kennard..from my experience,if suction line is icing,it cause from low of refrigerant quantity.The normal refrigerant pressure is 60 ~ 70 psi.Please checked a gas pressure using manifold gauge..if low pressure,please refill a refrigerant.
    one more cause if suction line icing is the TXV or expansion valve clogged with oil compressor.To solve this problem,u can flush it with N2 or refrigerant.

    • hello lemau..how many refrigerant in kg or less do I fill the system in order it will operate normally?Are R22 and R134A have the same pressure?

      • lemau do you have any wiring diagram of a window type and split type aircondition?

        • i have it but in hardcopy..u can search in google.i think u can get it :D

      • To know refrigerant quantity in kg,please refer to information name plate at outdoor cover.It state the quantity of refrigerant.For more accurate when u refill the refrigerant,please use a clamp on meter.Refer the full load ampere for your A/C. Normally a gas R22 and R134a pressure for air-condition is around 60 ~ 70 psi.

        • Thanks for the info lemau..I really like your blogs, it helps me a lot in troubleshooting electrical equipments thats why I have to always visit this site and ask you. Will it be ok for you?:) Also I don't have enough books to read.

        • thanks for ur comment :D it ok..i try to help as possible i can :D

• hello to all here
  pls . i need some help ,
  i study air conditioning ( split type)
  but for 8 years i have not work on any aircond (servicing)
  first , a split type in good conditioned , working properly , but i will need to change the place of the indoor unit .
  please can u tell me how to close the gas, how to stop the gas, i know there is a stop valvue .
  then forgot which one is the return gas or..(big or small )
  there is 2 pipes from the compressor to the indoor
  i forgot where to put the manifold gauges .
  60 to 70 pis ..i check it, the compressor must be running ?? when its is on or off.? or when it is off ? does the distance between the out door unit and the compressor have a limit ? and does longer distance make the reading good ? about how many minutes do you read it when the distance is long .??
  sorry for my bad English . usually i use french

  i got a bog certificate in aircond but its was long ago

  • hello arno..below is my method how to change place for indoor unit :-
    1) first,pump down your gas into a compressor.
    how to pump down??
    step 1 : close the valve for discharge ( small tubing ).use allen key or hex wrench
    step 2 : connect ur manifold gauge.use a blue hose ( low pressure meter )
    step 3 : on ur air-cond unit and compressor will running.see ur low pressure meter.the pressure will drop.When it reach 0 psi,close the suction valve ( big tubing) faster.
    step 4 : switch off ur aircond.now pump down process is completed.U can disconnect ur indoor,

    please refer my video how to refill refrigerant for aircond..
    i will explain detail about split unit aircond in my next post..

• i have a york 1.5hp split unit.whin running the aircon the timer is on cause the compresor not to run and it blow warm air.had try to reset the timer but it does not work

  • Hi azmar,it strange if u cannot reset the timer function.I suggest u to test another remote for york

• does all york split unit remote is the same?

  • basically it same..i already try..it function properly

• well most probably the control card is the problem...

  • control card is the one of a common cause :D need step by step troubleshooting to find the root cause :D

• my outdoor fan won't start..usually,i just turn off the circuit breaker and turn it on again and it will work perfectly fine..but last night..forgot to reset the unit the when i woke up,the red light (which always turn on when its cold) permanently turns on..i did a hard reset by manually pressing the on/off switch for 5 secs and the red light turn off..the problem now is that my outdoor fan won't start. please need professional help/advice on how to deal with problem..thank you

• sir, good day, what if the problem is the unit is automatically shot down thin i just off the breaker in 5 seconds thin the unit is active again, after 15 0r 30 min. the unit shot down again. thin it has a blink led in OPERATION. wish u could help me with this problem

• good morning sir please sir my help sir my english no sir sir split ac inerview question and answer sent sir my id sir split ac total wireing fult anwer total cooling problem rezen total indoor problem resen outdor problem resen split ac how psig comprasor how prassure pumping how prassure back section how prassure discharge how prassure on and off back prassure complite ac repair answer sir sent sir

• Sir! what is the problem the indoor unit Timer always Blink using remote control switch OFF then ON again they same problem the timer always Blink what is the cause.

• Hi Lemau,

  Need some help on York 1.5hp split aircond.
  When i start the aircond, the indoor unit fan will run only for 2 seconds then it will stop. The compressor is running well because i can feel some coldness on the indoor unit. I tried to turn the fan with my finger, the seems like it wanted to turn but there is some friction which cause it to stop again. However, when i stop the aircond and try to turn the fan with finger, it can easily turn without any friction. What could be the problem?

  • 1) Try check & replace cooling coil sensor(indoor unit).
    2) Check motor blower fan (indoor) and capacitor