Ac stops working

Hello,

It sound like the compressor clutch has shorted out but to be sure replace the fuse and disconnect the compressor to see if the fuse blows once the AC is turned on. If not the compressor needs to be replaced. Here is a guide to help walk you through the steps with guides below to show you on your car:

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Thank you for the reply, Ken. I will try to check on this one. Am really a new with this so the diagrams are really helpful. What I was able to already try on my own so far is to remove the clutch relay and let it idle with engine already at warm temp. So far fuse held on. Not sure if that is enough but that led me to believe it can be something related to the clutch assembly or line. Just a newbie hunch though. Would a relay actually cause such issue? Can I safely swap relay between clutch and condenser fan or radiator fan without causing further problems?

What happens is the clutch coil shorts out due to age and pops the fuse 9 times out of 10. If the relays look the same you should be able to swap them. Let me know please.

Hello. I swapped the relays but did not really help other than ruling it out as the fault. It turned out to be something over the current capability of someone new like me. Got help on this one and as suspected, it came up that the magnetic compressor clutch is causing the fuse to short out. When getting it replaced, a bigger issue was found. The shaft (not sure if it's the correct name for it) where the magnetic clutch connects to the compressor is already faulty. It is loose and has a play to it. Was told replacing the clutch alone will just result on it failing again so I ended getting the whole compressor and clutch replaced.

Thanks for the help in guiding me to the right direction. though it turned out to be a costlier repair than what I had anticipated and hoped for.

Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.

I had a Freon leak repaired about one year ago, the replacement Freon had dye in it to detect future leaks. In the last week, my A/C stopped working completely. When I checked under the hood, there was a bright red substance around the component that holds motor oil. The horizontal seal around that component in particular has this substance in the crease.

Hi gorillacompany,

Thank you for the donation.

Your description of the component is not clear and I am not able to understand what it is.

If you are able to laod a picture of the component, that would help.

As to the AC not working, did you check if the compressor is working?

I tried to locate the A/C compressor, but I don't know enough figure out what it is. I attached the picture, everything red appears to be new within the last few days.

The red substance is all around the crease, and seems to have dripped down on other engine parts.

That is the valve cover and the red substances seems to be sealants. I don't see how sealants could be dripping.

Under normal circumstances, sealants are not used as the valve cover gasket is a rubberised seal and is compressed to prevent leakages.

The compressor is the component at lowest point of engine at front part where it has a belt going over it.
When A/C is turned ON, the outer part should click and attache itself to work.

I have recharged my air, tested pressure switch on drier, checked relay and a/c won't work. if I apply power at compressor pigtail it will engage.

no, it is a separate system. have the freon pressures checked.

Roy

Roy

I personally charged to proper level of freon and compressor will not engage.

how much did you install?? what were the pressures when you jump the compressor??

Roy

evacuated system, vac for 35 mins, added 24oz, spec is 22 to 24.7. pressures were 35 low, didnt have high side guage hooked up though

it appears that when the switch is turned on, there is not power going to compressor, continuity between relay box and compressor is good, fuse is good.

Air Conditioning problem
1998 Honda CRV 4 cyl All Wheel Drive Automatic
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I have a 98 CRV, during the summer when we start the A/C, it does not blow the air as much as it used to, it feels like it is hardly blowing at all, therefore, my kids in the back seat can not feel the air at all. During the winter we have the same problem with the heat. What is the problem?

Hi def127,

You need to check for
1. bad/weak blower motor
2. clogged evaporator cooling fins
3. leaking air passages.

Does the blower fan motor sound loud at max speed?

Have you tried to bypass the clutch cycle switch?

KHLow2008
When I have the fan on it sounds like it is on high, but feels like it is on low.

I did bypass the cycle switch.. still made no difference.

Hi def127,

So the motor is working hard but the air flow is weak.

Check for air flow leaks and clogging or air passages. Is there any air escaping from other vents like the defroster etc?

Might be clogging of the air flow fins in the evaporator.

it appears that after further diagnostics, there is a self diagnostics through the control head, if there are any codes it will tell the pcm not to engage compressor. I ran self diagnosticcs and it had blower speed fault. went through testing and found out that resistor is causing blower speed fault. will have the part in 3 days, will update when part comes in if that resolved my issue. thank you to all who responded and tried to help me through this.

I had the same problem with my crv
I checked the cabin air filter located behind the glove box and there was no doubt in my mind where the problem was.
The filter was so plugged I'm surprized any air was getting through at all.
Changed the filter and no more problem.

UPDATE ON REPAIRS: I replaced blower motor resistor, went through self diagnostics again as directed by trouble shooter. started vehicle and turned on air. works great! 31 degree drop at center vent!

Hey Carguy598,

I'm having the same issue I just ordered by a resistor. My mechanic mentioned the resistor won't cause my compressor not to come on because it's a separate unit but I have my doubts and with your post, I'm almost sure it's the same issue. Fingers crossed I'll keep you guys posted. Thanks for the info!

I have a problem with my car air condition. When I drive cold hair blows but when I don't dive or step on gass and just park the car my ac blows hot air. What do you think it's wrong with it?

Is it hot air like from the heater or just outside air temp that you feel when not moving?

Please let us know what happens, we are interested to see what it is.

Cheers, Ken

So I have great news which I will list below to make it easier to understand for whoever else reads this.

Vehicle:
1999 Honda Crv with 210k
Automatic

Issues:
1 - Blower motor only would turn on when climate controller was set to high (Bad resistor)
2 - AC compressor wouldn't turn on even if climate control was running on high (AC was fully charged, AC compressor was manually tested and it turned on.

Attempt to fix AC Compressor turning on:
1 - Checked all fuses and relay (All were good)
2 - AC system was emptied and refilled with new freo. (No leaks)


Solution:
1 - Replaced resistor (It fixed both issues of AC compressor not turning on and climate control fan speed)


Thanks Again,

Mario

Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help

Cheers, Ken