Bubbles in the receiver dryer

[warrior]

I notice some bubbles in my starex receiver dryer when the engine and aircon has just been recently shut off, but after a while it dissapears but no bubbles during air con operation, Is this any indication of damage parts?

Thanks for the help.

[recklus]

ganyan din kotse ko, sabi nung aircon specialist sakin normal lang may bubbles kasi di totally puno ng freon yung drier, sadya yun para may onti space para daw di hirap compressor

[yebo]

bubbles in the refirgerant sight glass is normal only...
1. when the ac compressor had just been turned on (ac clutch is engaged) as the refrigerant has not yet been fully liquified in the high side (or condenser side) of the refrigerant system. when the pressure in the high side has reached its design pressure then there should be no more bubbles seen in the sight glass.
2. when the ac compressor had just been turned off (ac clutch is off) because the remaining liquid refrigerant vaporizes as the pressure between the high side (condenser) and low side (evaporator) equalizes.

when the ac compressor* has been running for a while there should be no more bubbles in the sight glass. bubbles in the sight glass is a sign of undercharge.

*compressor ha, hindi yung ac lang kasi pwede naka-on ang ac pero off ang clutch ng compressor.

[jcastillo932]

Pag tuloy tuloy pa din yung bubbles pag matagal na naka engage and aircon compressor, meaning to say kulang na din sa freon.

[warrior]

Thanks for your reply, but my queries the bubbles appear just after the air con and engine has just been turned off and dissapears after a while.

Thanks again

[EssB]

Thanks for your reply, but my queries the bubbles appear just after the air con and engine has just been turned off and dissapears after a while.

Thanks again

That's completely normal sir since the pressure on the high pressure side equalizes with the low pressure side after the compressor stops running.