Aircon problem: discharge hose laging nagle-leak

[alfonsomiguel]

Mga Sirs,
Need help sa CRV 03, laging nagle-leak sa discharge hose (bumibigay yung fitting,minsan yung o-ring). Sabi ng tech, nag ha high pressure daw kaya bumibigay ang hose, masyado nag-iinit yung high side. Nung sinukat pressure, nasa 210psig. Ano kaya problem nito? may bara sa condenser o expansion valve? napalitan na drier, ganun pa rin. Napa cleaning na rin yung evap at wala naman leak evap.

Thanks in advance.

[Jiggs]

Bro, if that's the case then that two remaining item na lang tlaga suspect. Pero mas prone to blockage ang expansion valve compare to Condenser.

[jick.cejoco]

Mga Sirs,
Need help sa CRV 03, laging nagle-leak sa discharge hose (bumibigay yung fitting,minsan yung o-ring). Sabi ng tech, nag ha high pressure daw kaya bumibigay ang hose, masyado nag-iinit yung high side. Nung sinukat pressure, nasa 210psig. Ano kaya problem nito? may bara sa condenser o expansion valve? napalitan na drier, ganun pa rin. Napa cleaning na rin yung evap at wala naman leak evap.

Thanks in advance.

there must be a defect in the hose fitting or the o ring groove. maybe some corrosion. the 210 psig at the discharge side is a little bit too high for the philippine ambient temperature. the 210 psig translates to 133.8 degrees fahrenheit. if the pressure were too high, the safety relief valve will bleed off excess pressure or the high pressure switch will disengage the clutch or in older compressors, blow the fusible plug. the refrigerant might be contaminated or the system has non condensible gases that was introduced during service of the airconditioning

[alfonsomiguel]

Sir Jick, anything to do aside from using reliable refrigerant? Thanks ulit..

[jick.cejoco]

Sir Jick, anything to do aside from using reliable refrigerant? Thanks ulit..

drain your compressor oil and replace with new PAG 100, change your o rings where they are leaking as with other disturbed o rings, change your receiver/dryer and charge with fresh R134a refrigerant

[alfonsomiguel]

Sir Jick, isa na lang po. Yung pag drain ng compressor oil, need ibaba yung compressor? need talaga yung PAG100 na oil at hindi yung capella oil na nilalagay sa mga aircon shops? baka may alam kayo reputable shop, pa PM nlng.

Maraming salamat po Sir!

[jick.cejoco]

Sir Jick, isa na lang po. Yung pag drain ng compressor oil, need ibaba yung compressor? need talaga yung PAG100 na oil at hindi yung capella oil na nilalagay sa mga aircon shops? baka may alam kayo reputable shop, pa PM nlng.

Maraming salamat po Sir!

when you change the oil, you have to remove the compressor from its mounting and off the car. as you recover the refrigerant to empty the system, some of the oil mixed with the refrigerant goes with it. the remainder stays in the compressor. that's the one you drain as liquid. do not use capella (mineral oil) with R134a. yes, the shops in manila will insist it works. for lack of education and training, they will even tell you their story that they have been doing aircon since dagohoy revolted. bear in mind, R134a only came to the market in 1994 or 1995 in some areas.

[t2erns]

baka walang bracket yung hose at dahil sa pressure and vibrations bumibigay yung fittings. marami pa nga yata gumagamit ng mineral oil samantalang madami naman available na PAG OIL (ND8 for denso and SP10 for sanden).

[alfonsomiguel]

Thanks a lot for the input. I look for one good shop and have my aircon checked bearing in mind what you said. Maraming salamat po!