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#1
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A/C Compressor problem
I have a 5 year old Trane XL14i - 3 ton I think. Yesterday I noticed
it getting warm and the blower was running, but the compressor and fan were off. The contactor was engaged and power was getting to the unit. I turned everything off for about 10 minutes and then back on. Its been working fine for 24 hrs. and register temps are right where I expect - 62F at 110F evap temp and 90F outside temp. I'm wondering if this is a fluke or if I have a more serious problem. What can I check? |
#2
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A/C Compressor problem
Bad contactor. If fan and comp are both off, the likely culprit is the
contactor. -- Christopher A. Young Learn more about Jesus www.lds.org .. wrote in message ... I have a 5 year old Trane XL14i - 3 ton I think. Yesterday I noticed it getting warm and the blower was running, but the compressor and fan were off. The contactor was engaged and power was getting to the unit. I turned everything off for about 10 minutes and then back on. Its been working fine for 24 hrs. and register temps are right where I expect - 62F at 110F evap temp and 90F outside temp. I'm wondering if this is a fluke or if I have a more serious problem. What can I check? |
#3
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A/C Compressor problem
On Jun 1, 9:30*am, "Stormin Mormon"
wrote: Bad contactor. If fan and comp are both off, the likely culprit is the contactor. -- Christopher A. Young Learn more about Jesus *www.lds.org . wrote in message ... I have a 5 year old Trane XL14i - 3 ton I think. *Yesterday I noticed it getting warm and the blower was running, but the compressor and fan were off. *The contactor was engaged and power was getting to the unit. I turned everything off for about 10 minutes and then back on. *Its been working fine for 24 hrs. and register temps are right where I expect - 62F at 110F evap temp and 90F outside temp. *I'm wondering if this is a fluke or if I have a more serious problem. *What can I check? I agree that's the most likely. If you were able to tell it had power was that with a meter? Next time it happens check the other side of the contactor for 240vac. While most techs will replace a contactor because they don't want a return call, it is possible to repair them. Usually it is pitted and worn contacts. You can clean them up with a small file. |
#4
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A/C Compressor problem
I was thinking run cap, until I read both fan and comp were out. The
"turned off then on" was the other factoid. Hope the OP is kind enough to follow up, let us know what was the actual problem. -- Christopher A. Young Learn more about Jesus www.lds.org .. "jamesgangnc" wrote in message news:78a286d8-cdeb-4475-a16b-9 I agree that's the most likely. If you were able to tell it had power was that with a meter? Next time it happens check the other side of the contactor for 240vac. While most techs will replace a contactor because they don't want a return call, it is possible to repair them. Usually it is pitted and worn contacts. You can clean them up with a small file. |
#5
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A/C Compressor problem
Yes, I checked power with a meter, but it was only incoming power and
not outgoing from the contactor. The contactor was engaged and humming, so I assumed it was the cap, but then the fan would have been on. I just droppd the ball there. As a precaution, I'll clean the contacts. I'll be sure to post again if it stops again. Thanks all. I agree that's the most likely. *If you were able to tell it had power was that with a meter? *Next time it happens check the other side of the contactor for 240vac. *While most techs will replace a contactor because they don't want a return call, it is possible to repair them. Usually it is pitted and worn contacts. *You can clean them up with a small file.- Hide quoted text - - Show quoted text - |
#6
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A/C Compressor problem
On Jun 1, 8:58*am, wrote:
Yes, I checked power with a meter, but it was only incoming power and not outgoing from the contactor. *The contactor was engaged and humming, so I assumed it was the cap, but then the fan would have been on. *I just droppd the ball there. As a precaution, I'll clean the contacts. *I'll be sure to post again if it stops again. Thanks all. I agree that's the most likely. *If you were able to tell it had power was that with a meter? *Next time it happens check the other side of the contactor for 240vac. *While most techs will replace a contactor because they don't want a return call, it is possible to repair them. Usually it is pitted and worn contacts. *You can clean them up with a small file.- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - Please turn off the power before you operate on the contacts. |
#7
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A/C Compressor problem
On Jun 1, 9:58*am, wrote:
Yes, I checked power with a meter, but it was only incoming power and not outgoing from the contactor. *The contactor was engaged and humming, so I assumed it was the cap, but then the fan would have been on. *I just droppd the ball there. As a precaution, I'll clean the contacts. *I'll be sure to post again if it stops again. Thanks all. I agree that's the most likely. *If you were able to tell it had power was that with a meter? *Next time it happens check the other side of the contactor for 240vac. *While most techs will replace a contactor because they don't want a return call, it is possible to repair them. Usually it is pitted and worn contacts. *You can clean them up with a small file.- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - The caps practically never cause intermittent problems. I can see how you might cycle it once before checking everything and then when it started that was the end of troubleshooting. I hate intermittent problems on any thing as they alway seem to go away right after I take the cover off. |
#8
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A/C Compressor problem
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#9
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A/C Compressor problem
Sorry, I was not clear. I did NOT check outgoing power. We were on
our way out of the house and I was rushed, so I just checked to see if I had 220V coming in and then assumed all was OK. On Jun 1, 11:04*am, Tony wrote: wrote: Yes, I checked power with a meter, but it was only incoming power and not outgoing from the contactor. OK, you found the problem. *Power in and no power out? *There's your problem, a bad contactor. |
#10
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A/C Compressor problem
On Jun 1, 7:56*am, wrote:
I have a 5 year old Trane XL14i - 3 ton I think. *Yesterday I noticed it getting warm and the blower was running, but the compressor and fan were off. *The contactor was engaged and power was getting to the unit. I turned everything off for about 10 minutes and then back on. *Its been working fine for 24 hrs. and register temps are right where I expect - 62F at 110F evap temp and 90F outside temp. *I'm wondering if this is a fluke or if I have a more serious problem. *What can I check? A few years ago my outside unit fan wouldnt kick on first try, I think the unit was making some noise, I powered off and on a few times and the fan came on, the tech came out and tested and replaced the capacitor and said if I had left it for a long time trying to start I could have burnt out the unit, its been fine for 6 years since, find what is wrong before it leads to a bigger issue, maybe its the capacitor |
#11
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A/C Compressor problem
On Jun 2, 6:31*am, ransley wrote:
On Jun 1, 7:56*am, wrote: I have a 5 year old Trane XL14i - 3 ton I think. *Yesterday I noticed it getting warm and the blower was running, but the compressor and fan were off. *The contactor was engaged and power was getting to the unit. I turned everything off for about 10 minutes and then back on. *Its been working fine for 24 hrs. and register temps are right where I expect - 62F at 110F evap temp and 90F outside temp. *I'm wondering if this is a fluke or if I have a more serious problem. *What can I check? A few years ago my outside unit fan wouldnt kick on first try, I think the unit was making some noise, I powered off and on a few times and the fan came on, the tech came out and tested and replaced the capacitor and said if I had left it for a long time trying to start I could have burnt out the unit, its been fine for 6 years since, find what is wrong before it leads to a bigger issue, maybe its the capacitor The op said that both the fan and compressor would not start. That makes the contactor a lot more likely to be the culprit. |
#12
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A/C Compressor problem
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