What can be responsible for my car compressor to stop intermittently wen put on a/c system...

IF what I understand you are saying is, that...
There is Air blowing through the Ducts.
It is not cool air.
When you look under the hood, the Compressor is not on/working.

This is CLEARLY an "Internal Temperature Sensor" problem !

That's the Knob/Adjustment which lets you set what temperature you want.
It is bad, or, there is a unreliable connection from it to the Compressor.

One way to check this out is...
When it's not working, use a Jumper, to provide the Compressor with Voltage.
If it starts getting cool air being blown, then you have ID'd the problem positively.

This Sensor needs to be replaced, or
The wiring circuit/continuity must be checked for loose connections/voltage loss.

Route is...
Battery - Ignition Accessories - Main A/C Switch - Temperature Sensor - Compressor.

AutosBay:
IF what I understand you are saying is, that...
There is Air blowing through the Ducts.
It is not cool air.
When you look under the hood, the Compressor is not on/working.

This is CLEARLY an "Internal Temperature Sensor" problem !

That's the Knob/Adjustment which lets you set what temperature you want.
It is bad, or, there is a unreliable connection from it to the Compressor.

One way to check this out is...
When it's not working, use a Jumper, to provide the Compressor with Voltage.
If it starts getting cool air being blown, then you have ID'd the problem positively.

This Sensor needs to be replaced, or
The wiring circuit/continuity must be checked for loose connections/voltage loss.

Route is...
Battery - Ignition Accessories - Main A/C Switch - Temperature Sensor - Compressor.

Thanks sir.

I am not an expert, but it does seem to me that the previous diagnosis may be premature. Is there really enough information to give a clear diagnosis?
@ OP - what kind of car do you drive? Make, Year, Model?
How does the problem manifest? What do you think the trigger might be?

I have a Volvo with the same compressor cut out problem, except my trigger is road bumps and hard braking. Mechanics in Lagos could not figure it out, I placed one call to a service technician at a Volvo dealership in the US, and she immediately isolated the problem - a bad compressor clutch! Turns out it is a pretty common Volvo issue.

Perhaps if you give more info, the house experts can help you out.

zinaLPF:
I am not an expert, but it does seem to me that the previous diagnosis may be premature. Is there really enough information to give a clear diagnosis?
@ OP - what kind of car do you drive? Make, Year, Model?
How does the problem manifest? What do you think the trigger might be?

I have a Volvo with the same compressor cut out problem, except my trigger is road bumps and hard braking. Mechanics in Lagos could not figure it out, I placed one call to a service technician at a Volvo dealership in the US, and she immediately isolated the problem - a bad compressor clutch! Turns out it is a pretty common Volvo issue.

Perhaps if you give more info, the house experts can help you out.

Its corolla 03, sometimes compressor picks immediately I switch on a/c and cut off like 3 minutes after and refuses to on again. Also,compressor might not pick at all when I put on a/c.

Op,
I'm having this same issue. My car is the 2007 Toyota camry SE. The compressor works immediately I start and revv the car but starts blowing hot air as soon as I move some few km. I checked the gas and noticed it's black in colour. The AC technician I called to check the car already told me the compressor is faulty.

newtontoyo:
Op,
I'm having this same issue. My car is the 2007 Toyota camry SE. The compressor works immediately I start and revv the car but starts blowing hot air as soon as I move some few km. I checked the gas and noticed it's black in colour. The AC technician I called to check the car already told me the compressor is faulty.

Having the same issue with my camry! Exactly! The gas was black when I checkd! The mechanic told me the person that refilled the gas shud have flushed the condenser 1st...as a result of not doing so...he called it 'Virus' has affected the whole system n spoilt my compressor! So I have to change the whole system n Flush out everything! Not funny!!!

chimah3:


Having the same issue with my camry! Exactly! The gas was black when I checkd! The mechanic told me the person that refilled the gas shud have flushed the condenser 1st...as a result of not doing so...he called it 'Virus' has affected the whole system n spoilt my compressor! So I have to change the whole system n Flush out everything! Not funny!!!

In my own case, I bought a fairly used AC compressor and A new Condenser.the AC worked well for the first 2 months till last month when I started having this problem.i need a New AC compressor. I really want to be careful in getting one.
The technician that checked it suggested that I should have cleaned the evaporator. Don't know how true that is.

I am not a vehicle electrician but to a large extent i will agree with Autosbay.

I had a similar problem and what my electrician did was to change/fix the temperature relay (N500). The compressor no longer shuts down arbitrarily again.

please my 2008 toyota corolla trips off when i switch on the A/c. Any ideas here?

ayzone:
Its corolla 03, sometimes compressor picks immediately I switch on a/c and cut off like 3 minutes after and refuses to on again. Also,compressor might not pick at all when I put on a/c.

it was discovered that the compressor coil was bad,it was replaced and fresh gas was injected. Ac is back to normal condition,though am stil monitoring the state.

Please pals, my ac blows cold air only on high speed. Once I slow down or in traffic, it throws warm air at me. What could be the problem? Is my compressor failing?

ayzone:

it was discovered that the compressor coil was bad,it was replaced and fresh gas was injected. Ac is back to normal condition,though am stil monitoring the state.

Who did the work? Could you post their name and number. I am still searching for an AC expert to fix the clutch on my bad volvo compressor. I replaced it, but want to have the other as a back up.

zinaLPF:


Who did the work? Could you post their name and number. I am still searching for an AC expert to fix the clutch on my bad volvo compressor. I replaced it, but want to have the other as a back up.

call the technician on 08055277416,his workshop is situated around akilo,ogba in ikeja. Best of luck.

Macmilla:
Please pals, my ac blows cold air only on high speed. Once I slow down or in traffic, it throws warm air at me. What could be the problem? Is my compressor failing?

Looks like your condenser fan is not working well or your system is low on gas.

0rex:

Looks like your condenser fan is not working well or your system is low on gas.

I'm sure the two fans blow pretty well. Dt means gas, right?

Macmilla:

I'm sure the two fans blow pretty well. Dt means gas, right?

if the two fans blow very well, could be low gas which may be caused by leakage anywhere in the whole system. if there is no leakage, your compressor may be bad.

Macmilla:

I'm sure the two fans blow pretty well. Dt means gas, right?

Yes.

Please I need help.

My car Ac was cooling after sometime it stopped. Someone said I should top the gas, I did and it started cooling but after some days it stopped.

I had to take a closer look and I observed some things.

1. When I put on the AC, it doest cool unless I raise the engine.
2. The compressor get very hot after about 15 mins of operation
3. The compressor is leaking oil.
4. It gives the engine excess load more than supposed

I went to Ac technician, he changed a pipe and oil seal.
The AC stated cooling again but after about 15 mins of operation, it stopped. Oil and gas all leaked out.

Now he said I have to buy another compressor.
Please I need help, I need to understand what is going on first before I can go ahead

Honda EOD
2004 model
Four plugs

ayzone:

it was discovered that the compressor coil was bad,it was replaced and fresh gas was injected. Ac is back to normal condition,though am stil monitoring the state.

Good day sir, i have an 04 corolla that has similar issue atm, the AC works well for few minutes and start to blow hot air, it will pick back and start blowing cold air after a few minutes. Again, whenever its blowing hot air, if i switch off the AC and ON it back after sometime it will start working again.
I dont know if this is exact fault your car had and if changing of the compressor coil is the solution.

AutosBay:


This is CLEARLY an "Internal Temperature Sensor" problem !

That's the Knob/Adjustment which lets you set what temperature you want.
It is bad, or, [there is a unreliable connection from it to the Compressor.

One way to check this out is...

When it's not working, use a Jumper, to provide the Compressor with Voltage.
If it starts getting cool air being blown, then you have ID'd the problem positively.

which of the 2?

the sensor or the control knob?

how do you isolate either of these 2 issues conclusively?

especially the sensor

Lol, I know this is an almost 10 years old thread, but yup, I like this comment.

The previous diagnostic was rather hasty, and from researching online, it appears the compressor clutch is also a possible problem candidate in this case.

I have a similar problem with my CR-V 08 currently, although I've been to the A/C technician several times, with the clutch replaced, it seems to be recurring. My theory is that it's happening because it's a tokunbo part and you can never have the full guarantee on those. In addition to the fact that it (i.e. mine) started to occur again after a mechanic did some work on the engine, thus may have impacted the "carefully" managed clutch.

Also, found this interesting -
https://www.youtube.com/watch?v=x6084NqhbeE

Anyway, I'm just writing this as this thread is quite old. Who knows, someone may find it useful some day.

zinaLPF:
I am not an expert, but it does seem to me that the previous diagnosis may be premature. Is there really enough information to give a clear diagnosis?
@ OP - what kind of car do you drive? Make, Year, Model?
How does the problem manifest? What do you think the trigger might be?

I have a Volvo with the same compressor cut out problem, except my trigger is road bumps and hard braking. Mechanics in Lagos could not figure it out, I placed one call to a service technician at a Volvo dealership in the US, and she immediately isolated the problem - a bad compressor clutch! Turns out it is a pretty common Volvo issue.

Perhaps if you give more info, the house experts can help you out.

Crv compressor new na 35k. Condenser new 20k,radiator 15k toks. Buy everything complete,flush system and install. Make sure its auto,if its manual it can be repaired,if na auto. Forget