A/c problems

[YarisLuke76]

Hi all, my a/c has stopped working, I brought the car in November 2020
The owner then said he had the a/c recharged with gas, but now it not working
The green light is on but I don’t hear a click or any Rev difference, does the Yaris
2007 have relays for me to check? Also is my a/c a clutchless type as it looks like
It always engaged even when the a/c is turned off, I think maybe it shuts down when low on gas, any help would be great before I take it to a garage,
Thank you

[rayfloyd170]

Originally Posted by YarisLuke76

Hi all, my a/c has stopped working, I brought the car in November 2020
The owner then said he had the a/c recharged with gas, but now it not working
The green light is on but I don’t hear a click or any Rev difference, does the Yaris
2007 have relays for me to check? Also is my a/c a clutchless type as it looks like
It always engaged even when the a/c is turned off, I think maybe it shuts down when low on gas, any help would be great before I take it to a garage,
Thank you

it is highly possible that you have a refrigerant leak somewhere depleting your refrigerant hence the compressor wont run as a safeguard. It could be in the o-rings or joints or it could be in the evaporator which is hidden under the dash and need to take it off by a qualified AC technician. It can easily be tested by using manifold gauges. Low pressure side must be anywhere near 25-30psi dependent on ambient temperature, also need to check the HP side.

[YarisLuke76]

Okay I did think I might have a leak somewhere as the original owner mentioned to me a few times he’s had the a/c re-gassed, so it’s the a/c clutch supposed to always be engaged even when turned off in the car?
Thank you

[WeeYari]

Our compressor has an internal clutch. Visually, it appears that the clutch is always engaged.
You need to get a pressure test done as a first step. If you're low, then you have a leak. If pressure is fine, then your next likely point of failure is the pressure sensor. Failure of that component is rare but is exactly what shut my a/c down.