airco compressor turns on and off everey 2-3 secs.

[maimaicomp]

mga sir pa help po, yung hyundai grand starex ko kapag unang bukas ok naman ang aircon, sobrang lamig, pero after 15-30mins bigla na lang mawawala yung lamig, nung sinilip ko yung compressor nag turn on and off sya every 2-3secs. chineck ko yung aircon relay nya ok naman kaya lang may tick sound akong naririnig tuwing mag on at off yung compressor, malakas naman yung auxillary fan nya, pansin ko rin nung lumalamig pa sya hindi humihinto yung andar ng compressor, hindi sya nag automatic off kahit sobrang lamig na sa loob ng sasakyan, san po kaya problem neto mga sir?

[jick.cejoco]

Your system is short cycling. Have a tech check the both the low and high side pressures with engine at 2000 rpm. The low side should be between 28- 35 psig. If it is lower the low side may be restricted or the system under charged

[yebo]

check the line after the filter drier canister. if it is cold then you have a restricted filter drier.
check the sight glass. if there are bubbles then your system is undercharged.
if not these 2 then you probably have a defective temp sensor.

[jakewise]

It is also possible that your system is overcharged. Did you have your Aircon fixed lately, like charging the freon?

[benchman]

or it could be your high/low pressure switch is acting up.

[maimaicomp]

maraming salamat po sa mga sumagot, update ko lang po, napansin ko ngayon kapag front aircon lang yung nakabukas ok sya hindi nag-off yung compressor, pero pag binuksan ko na yung rear aircon dun na sya nag off and on yung compressor, kapag pinatay ko ulit yung rear aircon and after 30secs to 1 minute ok na ulit sya. pinasok ko na tong starex ko sa hyundai north edsa pero di nila makita yung problema. kulang lang kaya sa charge ng freon or overcharge? or baka meron pa ibang pwede cause ng on and off ng compressor?

[jick.cejoco]

the best way is to do a pressure check i just mentioned. cut the rain dance. cut the guess work. observe the pressures when the event happens. check the static pressure and compare with the pressure/tempreature chart




Pressure - Temperature Chart for HFC-134a

[maimaicomp]

the best way is to do a pressure check i just mentioned. cut the rain dance. cut the guess work. observe the pressures when the event happens. check the static pressure and compare with the pressure/tempreature chart




Pressure - Temperature Chart for HFC-134a

thanks po, ginawa na din po ng hyundai yung pressure test at freon check, normal naman daw lahat, siguro try ko na lang dalhin outside casa para makita ko rin kung talagang ginagawa yung unit, pinaiwan kasi sa kanila almost 1 week pero di nila naayos.

[jick.cejoco]

For knowledge purposes the gases inside the system other than R134a are called (NCG) non condensable gases. If you use the pressure/temperature chart, match the pressure against the temperature closest to or that of the containment. If the pressure is higher than that of the P/T chart at a given temperature the refrigerant is not pure or is lower than 98% purity

[Jiggs]

*jick. Sir you seems to be very knowledgeable on HVAC. Can you pls confirm that with the current car ACU refrigerant, you can't just do a top up or refilling of refrigerant? Techs says magkaron daw imbalance ng freon content kaya need to depressurize and evacuate the whole system pa . Appreciate if you could share theory on it😊

[jick.cejoco]

*jick. Sir you seems to be very knowledgeable on HVAC. Can you pls confirm that with the current car ACU refrigerant, you can't just do a top up or refilling of refrigerant? Techs says magkaron daw imbalance ng freon content kaya need to depressurize and evacuate the whole system pa . Appreciate if you could share theory on it[emoji4]

Amateurs[emoji1]



Use the P/T chart and measure the ambient temperature within ten feet of the car. Then, with the system running and stabilized, check the low side pressure and the outlet center register temperature

[Jiggs]

So wala pala scientific basis yun? Dammn rip off na naman ng mga aircon shop! What a Waste of resources 😔

[Jiggs]

Amateurs[emoji1]



Use the P/T chart and measure the ambient temperature within ten feet of the car. Then, with the system running and stabilized, check the low side pressure and the outlet center register temperature

Curious lang ulet how to measure yun outlet center temp.? Say sa car vent how far and what measuring instrument kelangan? And you need to measure din pala ambient temp by what type of instrmnt ulet?

[jick.cejoco]

You can use cooking thermometer, I/R non contact thermometer, DMM with a thermocouple probe as long as the range includes 30-120 degrees fahrenheit

[myas110]

maari bang ma recalibrate (or marepair) yung lumang compressor ng kotse para lumamig ulit yung aircon?

kung meron, mga magkano ang aabutin?

[dr. d]

maari bang ma recalibrate (or marepair) yung lumang compressor ng kotse para lumamig ulit yung aircon?

kung meron, mga magkano ang aabutin?

i read an artricle on that, some time back.
the (branded) name claims they can do it. but they added that the repair might not last as long as the original. maybe as short as a year only... but it's a lot cheaper than a brand new compressor.
sorry. i can't remember the name...

my two bits' worth? buy a new compressor, po.

[myas110]

i read an artricle on that, some time back.
the (branded) name claims they can do it. but they added that the repair might not last as long as the original. maybe as short as a year only... but it's a lot cheaper than a brand new compressor.
sorry. i can't remember the name...

my two bits' worth? buy a new compressor, po.

yung erpat ko nirepair na yung compressor (?) pero yung tunog sa compressor ay andun pa rin kapag nasa idle.

yun nga din ang iniisip ko na bumili ng bagong compressor. pero super tight talaga ang budget ko, so I might replace the compressor kapag may pambili na ako. (inuunti ko talaga ang repair and maintenance ng Mazda 323 namin. )

ano bang OK na brand na compressor, yung tipong lalamigin ka talaga sa loob ng kotse kahit napakataas ng tirik ng araw?

[m1kz0430]

yung erpat ko nirepair na yung compressor (?) pero yung tunog sa compressor ay andun pa rin kapag nasa idle.

yun nga din ang iniisip ko na bumili ng bagong compressor. pero super tight talaga ang budget ko, so I might replace the compressor kapag may pambili na ako. (inuunti ko talaga ang repair and maintenance ng Mazda 323 namin. )

ano bang OK na brand na compressor, yung tipong lalamigin ka talaga sa loob ng kotse kahit napakataas ng tirik ng araw?

Hi sir regarding dun sa maingay na compressor ng mazda 323 mo napaka common po nyan (fast ticking sound?) lalo sa mga mazda, mazda 3 also have that problem rotary type po kasi ang compressor na gamit nila unlike nung iba na piston type, usually po na eencounter ko na ganyan malamig naman ang aircon yun nga lang annoying ang ingay tsaka tama ka sa kapag naka idle lang yan maingay, i suggest kung kaya mo tiisin ang ingay hayaan mo nalang kaysa ipa repair mo yan na i doubt magagawa, pinaka the best option nyo po talaga kung gusto nyo mawala yan replace compressor brand new mas tight pa ang flapper nya sa loob wala ingay but expect na iingay ulit yan after 5 years kung swerte ka, like what ive said malamig yan yun nga lang maingay and regarding dun sa question mo na magandang compressor gamitin at kaya kahit tirik ang araw wala po marami pong factors kaya minsan di sapat binibigay na lamig ng a/c natin di po puro compressor lang nkasalalay ilalamig mga auto natin

[weisshorn]

Lagay mo sa "Max AC" kung patay buhay pa rin. Baka ang temperature setting mo ay mataas kaya sandali lang ang andar ng compressor.

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[jmpet626]

Lagay mo sa "Max AC" kung patay buhay pa rin. Baka ang temperature setting mo ay mataas kaya sandali lang ang andar ng compressor.

Sent from my Lenovo A7000-a using Tsikot Forums mobile app

Na try ko na po sa pinaka coldest setting ng thermostat pero ganun pa din. Pinag tataka ko lang bakit pag long drive lang siya lumalabas. Pag short drive na less than an hour multiple times a day wala problema aircon.