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Anonymous Posted on May 13, 2014
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Unit fan in attic will not stop running

Hi The system was fine after I replaced a capacitor for the out side start up worked fine until yesterday 90 degrees not cooling well noticed fan ran all night on low unless you turn off circuit breaker,thanks Joe

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william simpson

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  • Goodman Master 1,363 Answers
  • Posted on Aug 11, 2015
william simpson
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Joined: Jan 17, 2012
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If the thermostat is calling for cooling the fan will run 24-7

5 Related Answers

Anonymous

  • 290 Answers
  • Posted on Nov 20, 2007

SOURCE: Ruud heat pump outside unit trips circuit breaker

Check your wiring between the contactor and compressor for a short to ground, or check the compressor windings for short to ground.
With the Tstat off, the contactor should be open so the only way for the compressor to be trying to do anything is if the 110 volts from the unbroken side are traveling through the compressor to ground. Since 110v is not enough to run it, the overload is kicking it out, cooling off, and repeating the cycle. When you kick on the Tstat, the contactor is supplying voltage directly to ground without going through the resistence of the compressor windings and kicking the breaker.
Post back and let me know what you find.

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Anonymous

  • 540 Answers
  • Posted on Jun 09, 2008

SOURCE: AC breaker trips after 10 minutes

Whats the amp breaker? Is this for the inside unit or the outside condenser? If the inside and gas heat you have a bad fan motor, If its an electric furnace , the same, but if its the outside unit, the fan could be going bad, locking up and the compressor still runs and pulls high ampsand tripps breaker or the compressor is just pulling too many amps due to plugged coils with dirt , grass or weeds blocking airflow.([email protected])

Anonymous

  • 540 Answers
  • Posted on Aug 25, 2008

SOURCE: Goodman CKL60-1 Condenser Fan Runs OK, then stops

Bad bearings on the motor or check the fan rotations . Air should always blow out the top and **** in through the sides or coils.!... Thank-you-very-much!

muttandjeff

Allen Neal

  • 359 Answers
  • Posted on Nov 08, 2008

SOURCE: Blower in Attic not running

inside unit has fan control relay , either on control board or can be separate ,except for the 24 volt transformer and the t-stat the units operate separately concentrate totally on the inside unit this is where the problem lies

motor1258

Mike Butler

  • 6674 Answers
  • Posted on Oct 19, 2010

SOURCE: Hello , this is Bobby

Here's a link to a service manual, with step by step tests to determine whats wrong. I'm thinking compressor shot, but this should confirm, and or help you determine for yourself. Be careful with those capacitors eh !! Read warning in service manual.

http://www.rvcomfort.com/pdf_documents/1976141_copy.pdf

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2002 4 ton Bryant air conditioner shuts off, fan still runs but not cooling is problem in the controls in the attic or in the AC unit or both?
With a non heat pump it is a simple 24 volt AC control circuit. In the attic there is a relay that is actuated via the fan control wire directly from the thermostat. On the thermostat there is an auto/man switch that controls the fan. Manual the fan runs all the time. Auto fan turns on and off with the outside compressor.

If the system is not calling for cool and the fan continues to run the fan relay is sticking. common problem. Sometimes after running for several days the relay will stop sticking if not, replace relay.

If the system is calling for cool and the compressor stops I would still expect the fan to run until thermostat tells the A/C to off. Some compressor units include a safety switch or high-pressure cut-out switch A blocked internal valve bad control board or external fan in outside unit defective no air flow in outside unit.
High pressure cut out not good,

Suggest turning temp max cool and observe. If acceptable cool and the compressor runs without interruption all is good, except for the blower in the attic. Safely check relay in attic blower circuit.

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2002 4 ton Bryant air conditioner shuts off, fan still runs but not cooling is problem in the controls in the attic or in the AC unit or both?

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