Gas and Oil Home Heating Furnaces - Central air shutting down

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07-25-01, 07:21 AM
I have a central air unit (Carrier I think) that has performed flawlessly for several years since I bought my house (used). I clean the outside unit with a hose and make sure there's nothing in the unit at the beginning of the summer. Yesterday, the unit started running weird. When turned on at the thermostat, it will run (outside unit and furnace fan in basement) for about two minutes and then both blowers shut off. I turned the thermostat way down to like 50 deg to make sure the thermostat wasn't tripping it off and still shuts down. The furnace fan can be turned on by itself manually at the thermostat and it runs fine. Could it be my thermostat, or should I be looking at something else??? When it is running for the two minutes, it does make cold air, but then shuts off. TIA!!!!

TIM

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07-25-01, 01:40 PM
off to blower and to outside unit.Remove tstat,take red,green and yellow wires,twist them together GOOD.Turn power back on to blower and outside unit.If system runs fine IT PROBABLY is your tstat.Give the forum a yell back as to what you found.PDF
07-31-01, 12:45 PM
It was the thermostat. I got a new programmable one and it is slick. Thanks for the assistance.

Tim