Is it ok to leave the aircon on and turn off the engine?

[tidus1203]

I see some people do this. They leave the aircon on, and then turn off the engine. So when they turn on the engine again when they use the car later on the aircon automatically goes on as the engine is turned on. Masama ata yun diba? My practice kasi is always to turn off the aircon before turning off the engine....

[alwayz_yummy]

turning off the engine 1st sisirain nun compressor mo in due time, kasi biglang hihinto... tsaka additional load agad yun sa batterya...

[Memphis Raines]

No. It is NOT ok to do this

Cardinal rule before shutting the engine off: Turn-Off Everything (radio, aircon, DVD, etc)

You can't be that lazy

[Arvin Cristi]

sir, my aircon technician said never to do it that way, kasi masisira daw yung clutch and compressor when you trun on the engine dahil biglang may load yung compressor, mapwepwersa daw yung compressor. hindi naman daw ganun kahirap mag on ng AC after starting the engine

[alwayz_yummy]

unang bibigay nga pala is compressor bearing--un ang uugong kung lagi mong ginagawa to

[boybi]

Aren't newer cars with computers able to control/manage the start-up of the compressor until after the engine is switched ON and in idling speed? I don't practice this. I always turn OFF the aircon before I switch OFF the engine. But I'm just curious if new cars have this safety feature already.

[mikko_018]

big ...

[kinyo]

Yes, boybi ... some new cars have electronic control for the A/C and will disable the compressor when engine is not running.

However, every manufacturer recommends that A/C should be turned off when not in use.

Other than being an additional electrical load for the battery while the engine is not running, and as additional mechanical load when the car is started, I really don't see why this practice could possibly cause any damage to the car. Sure, the car may have difficulty starting (which justifies manufacturer's advice), but there is nothing that would tend to break. You may have consumed more electrical energy and the starter operated with higher current to start the car, but both battery and starter are so durable, the additional load is peanuts.

I guess the recommendation was meant to avoid ... peanuts?

The lolo is correct. Matibay ang oto niya kagaya ng oto natin.

[basti08]

My grandfather is like that. Nung sinabi ng erpats ko na patayin daw muna AC nagalit pa. Kaya pag start ng engine pagdating pa lang sa "ON" sa susian, umaandar na yung AC tapos pag start magpo-pause yun pag redondo ng oto tapos start uli. Naaawa ako sa Camry nya. Pero sabi nga ni 'lo, "yaan mo matibay ang Toyota.."

Tsk tsk baluktot at pinapanindigan talaga... hahaha

[forcemajeure]

I see some people do this. They leave the aircon on, and then turn off the engine. So when they turn on the engine again when they use the car later on the aircon automatically goes on as the engine is turned on. Masama ata yun diba? My practice kasi is always to turn off the aircon before turning off the engine....

no no no no

ako kasi ang trato ko sa kotse eh parang tao... pag malamig pa engine dko agad papatakbuhin ng hi-rev or air-con agad, mga several seconds or dapat nga minutes pa eh bago umandar and mag aircon..pag malamig engine

parang ang tao pag tulog gisingin mo at magpabili ka ng suka sa kanto at patakbuhin mo sya ng mabilis gulo ang hanap mo nyan at sakit sa ulo