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I have an old '95 Honda Civic with the following bizarre A/C problem:
On hot days, the A/C blows nice cold air, no problem. But on mild days when it's just a little warm outside, the air coming from the A/C keeps fluctuating in temperature: It's cold, then a few minutes later it's warm like the A/C stopped working. Then some time later the air gets cold again. I think (though I'm not 100% sure) that if I cycle the A/C recirc buttons on the dash back and forth, turning the recirc on and off, that seems to trick the A/C into blowing cold air again. I thought it might be the thermostat, but the mechanic says it's working fine. Any other causes you can think of? -- Steven D. Litvintchouk Email: sdlitvin@earthlinkNOSPAM.net Remove the NOSPAM before replying to me. |
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Steven L. wrote: > I have an old '95 Honda Civic with the following bizarre A/C problem: > > On hot days, the A/C blows nice cold air, no problem. > > But on mild days when it's just a little warm outside, the air coming > from the A/C keeps fluctuating in temperature: It's cold, then a few > minutes later it's warm like the A/C stopped working. Then some time > later the air gets cold again. I think (though I'm not 100% sure) that > if I cycle the A/C recirc buttons on the dash back and forth, turning > the recirc on and off, that seems to trick the A/C into blowing cold air > again. > > I thought it might be the thermostat, but the mechanic says it's working > fine. > > Any other causes you can think of? It's probably the compressor turning on and off as it's supposed to. You shouldn't use the Air conditioning on those days. Bg |
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ottguit@hotmail.com wrote:
> Steven L. wrote: >> I have an old '95 Honda Civic with the following bizarre A/C problem: >> >> On hot days, the A/C blows nice cold air, no problem. >> >> But on mild days when it's just a little warm outside, the air coming >> from the A/C keeps fluctuating in temperature: It's cold, then a few >> minutes later it's warm like the A/C stopped working. Then some time >> later the air gets cold again. I think (though I'm not 100% sure) that >> if I cycle the A/C recirc buttons on the dash back and forth, turning >> the recirc on and off, that seems to trick the A/C into blowing cold air >> again. >> >> I thought it might be the thermostat, but the mechanic says it's working >> fine. >> >> Any other causes you can think of? > > It's probably the compressor turning on and off as it's supposed to. > You shouldn't use the Air conditioning on those days. Thanks for your help. However, I just got a phone call from my mechanic. It looks like the problem is the compressor clutch. That's going to cost me. -- Steven D. Litvintchouk Email: sdlitvin@earthlinkNOSPAM.net Remove the NOSPAM before replying to me. |
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"Steven L." <sdlitvin@earthlinkNOSPAM.net> wrote in message news:xbali.7057$zA4.5799@newsread3.news.pas.earthl ink.net... > ottguit@hotmail.com wrote: >> Steven L. wrote: >>> I have an old '95 Honda Civic with the following bizarre A/C problem: >>> >>> On hot days, the A/C blows nice cold air, no problem. >>> >>> But on mild days when it's just a little warm outside, the air coming >>> from the A/C keeps fluctuating in temperature: It's cold, then a few >>> minutes later it's warm like the A/C stopped working. Then some time >>> later the air gets cold again. I think (though I'm not 100% sure) that >>> if I cycle the A/C recirc buttons on the dash back and forth, turning >>> the recirc on and off, that seems to trick the A/C into blowing cold air >>> again. >>> >>> I thought it might be the thermostat, but the mechanic says it's working >>> fine. >>> >>> Any other causes you can think of? >> >> It's probably the compressor turning on and off as it's supposed to. >> You shouldn't use the Air conditioning on those days. > > Thanks for your help. > However, I just got a phone call from my mechanic. It looks like the > problem is the compressor clutch. That's going to cost me. > > I think it's unlikely a compressor clutch would work reliably on warm days, but not on average days, when the temp under the hood is much more dependant on the type of engine use. How about the AC pressure sensor for the condensor fan? On hot days, the fan might be running anyway because of the engine temp. On not so hot days, if the AC needs to loose the heat, but isn't triggering the fan, the pressure could increase to the point that the high pressure cutout is stopping the system from working. Check that the condensor fan is running when you think the system isn't running like it should, also the compressor clutch volts if you can, if it isn't being engergised, it's not the problem. If it is, you could remove the outer plate if you can get to it, and see if it has been "over shimmed". I've seen this a few times. If the output pipe from the condensor is hot, normally the condensor fan should be running. www.poolecool.co.uk |
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