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Home HVAC question
My home a/c system started acting out today. Last night I noticed that it was not working so I fiddled with the switches and got it running yesterday but today I noticed that the house was warming up. I went outside and I could see the blower fan running but the compressor was not working. I could also hear a relay click on and off. Every now and then it would cycle on but more often not.
A/C guy replaced the contactor and the capacitor but it did dot help. He thought it may have been a bad thermostat but sadly, replacing it did not help. Any other thoughts?
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With best regards Al |
#2
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is the condensor fan running? the a/c guy "thinks" is something i never like to hear when paying someone. if you push the contactor does everything come to life?
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have no worries.....President Obama swears "If you like your gun, you can keep it |
#3
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Yeah, it's running, but as the relay is clicking, it's killing the fan. He thought it was the thermostat because he crossed some wires together at the thermostat and the condenser ran well for several minutes while we stood around.
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With best regards Al |
#4
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Fan running but no compressor: did he check Freon pressure? It could be cutting out due to low pressure.
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#5
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I checked the high side which was at 275 in 108 degree weather. Maybe a little but not too high.
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With best regards Al |
#6
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Remember, Safety Third! '99 E300 Turbodiesel, '82 300TD, 1996 12V Cummins Turbo, '94 Neoplan - Detroit 6V92TA |
#7
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Get another "A/C guy". This should not be guesswork at your expense.
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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags |
#8
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At this point I would suggest having a serious talk with the "A/C" guy. Ask him how he plans to proceed, and if he is going to keep "throwing parts at it" without any real diagnostic testing, then replace him with a real technician! |
#9
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Quote:
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Last night, I bridged the connections behind the thermostat, as he did and could still hear the clicking so it was clearly not the thermostat. Quote:
I really can't fault his diagnostic skills, this system is pretty old and I liken it to working on old cars. Sometimes you just need to look at how old things are and replace them using a process of elimination. In the end, I don't think he over charged me.
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With best regards Al Last edited by alabbasi; 08-13-2012 at 11:46 PM. |
#10
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Transformers rarely fail, and attics in Dallas are toasty this time of year. If it had been cooler, he might have been more thorough in testing/diagnosis. But, A/C systems don't usually fail in the winter! I can't say that I'd blame him for missing that either. Hey, at least you didn't have to buy a compressor.
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Remember, Safety Third! '99 E300 Turbodiesel, '82 300TD, 1996 12V Cummins Turbo, '94 Neoplan - Detroit 6V92TA |
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