Aircon - click click sound

[Starlet]

Hi Guys

 

My aircon sometime got this fast and continous click click sound.

Suspect aircon termonstat .

 

I found a small box next to the blower with a switch " label RPM H - L "

This is the termonstat?

 

thinking of turning it to all the way to H , may be this will set the RPM to "HIGH" and stop the clicking.

 

Cheers

[Mivec9]

mine used to have the tac tac sound...now dun have.

 

not sure on the thermostat setting...may need other chaps to answer

[Yeobh]

That small box is a RPM cut-in device. Set at the middle range between H -L should be ok. Set at very low rpm, the compressor will cut-in and may kill the engine.

[Apollo]

ball bearing of blower wearing off.

 

how old is ur car btw?

[Starlet]

Hi

 

Changed the blower "solenoid" before, due to wear and scratching sound.

 

My is 91 starlet.

 

After I turn the RMP to more H , the clicking sound seem gone.

 

May be due to bad contact of the in the box.

 

Rdgs

[FGY7022]

i have not went to see what's at the blower thou, but i do have the problem of the fan at the condenser not moving.... in other words... say.. when i start the car, turn on the air-con, the blower does turn, cos there is air coming out... but it not cool air, when i open the bonnet and check, it's the fan that's not moving...

 

but i will move, and that's say after a while... the longest i have waited was 20mins... and that doesn't happens all the time, say once in every few days, but will be in that way for a few days too.

 

any idea what's wrong?

[Apollo]

2 different things here.

 

1st, the blower for the aircon, is attached n very much concealed fr sight. U can't see it.

 

The blower that u refer to is probably the fan for the "aircon radiator"/ "engine radiator", this operates on a thermostat between 74degC and/ 90degC. It will not operate if the temp is lower than this. In short, if it does not run, it may not b an issue.

 

next issue. when u hv no cool air coming out fr ur "aircon system", it may refer to a nos of things, possibly, gas leak, lack of maintenance leading to dirty aircon filter, clogged condenser, dying aircon compressor, faulty relay, etc. if ur car is reasonably old n the aircon neber been serviced b4, take it as an opportunity to do this. make sure the mechanic check for leaks, this usually comes in form of oil stain at pipe coupling, aircon radiator, etc.

[FGY7022]

thanks bro, just wanna check.... how much is a reasonable price for servicing the air-con system? my car is a COE car. old fellow.

 

Haizzz... looks like i do need to service it also, yesterday, there is the click click sound, i think it the thermostat turning on anf off, it jus keep clicking and clicking, stop after 3-5 clicks, after a while start again, also when i go over uneven road or humps... dun know why, but it "activates" the clicking.... Haizzz.....

[Apollo]

since they suggested markcool, i suggest u go there to check.

 

the danger of this aircon stuff is in the con. plenty of con there. many will just do what u suggested den something happen, they tell u change unneccessary parts to make more $$.

 

goto a reliable biz where they do a proper job.