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My outside A/C unit is not coming on - Goodman Heating & Cooling

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I will give a few basic and easy steps of things to check first.
1. If your air handler has a float switch either attached to the secondary 3/4 pvc drain, or to secondary drain pan, check to make sure the water level hasn't risen and activated the float switch. if it has, you will have to flush the primary drain line and/or primary drain pan(located inside the air handler).
2. Check to see if the air handler is running(blowing air). if not, you'll want to check the breaker for the air handler- it might have tripped. if not tripped, you could have a bad 24v control transformer(inside air handler), or bad thermostat.
3. If the air handler is running, you can go outside to check for a red reset button located on the outside unit, usually near the bottom. Sometimes when the coils are dirty, or the outside fan motor stops working due to a bad motor or capacitor, the pressure of refrigerant will rise and cause the reset button to trip. If its tripped and you reset it, and if the unit starts, check to make sure outside fan is running and coils are clean. If unit does not start, check the outside disconnect/ breaker to make sure it is on and/or not tripped. If you have a volt meter, you can check for 240volts. This is only if you know how to use a volt meter safely without getting electricuted. If power is present, then it could be the compressor contactor, or the dual capacitor, located in the outside unit, which operates the fan and compressor, and could be checked with a capacitance meter and/or a vom with a capacitor tester. Some signs of a failed capacitor is when the top part seems kind of rounded and bubbled up, or when there is gel leaking from it. Remember, do not touch the terminals of a capacitor, even if the power is off, capacitors can hold electricity for a long time. (days, months, even years)!!!

Posted on Nov 11, 2013

  • bigjohnpap Nov 11, 2013

    I will give a few basic and easy steps of things to check first.
    1. If your air handler has a float switch either attached to the secondary 3/4 pvc drain, or to secondary drain pan, check to make sure the water level hasn't risen and activated the float switch. if it has, you will have to flush the primary drain line and/or primary drain pan(located inside the air handler).
    2. Check to see if the air handler is running(blowing air). if not, you'll want to check the breaker for the air handler- it might have tripped. if not tripped, you could have a bad 24v control transformer(inside air handler), or bad thermostat.
    3. If the air handler is running, you can go outside to check for a red reset button located on the outside unit, usually near the bottom. Sometimes when the coils are dirty, or the outside fan motor stops working due to a bad motor or capacitor, the pressure of refrigerant will rise and cause the reset button to trip. If its tripped and you reset it, and if the unit starts, check to make sure outside fan is running and coils are clean. If unit does not start, check the outside disconnect/ breaker to make sure it is on and/or not tripped. If you have a volt meter, you can check for 240volts. This is only if you know how to use a volt meter safely without getting electricuted. If power is present, then it could be the compressor contactor, or the dual capacitor, located in the outside unit, which operates the fan and compressor, and could be checked with a capacitance meter and/or a vom with a capacitor tester. Some signs of a failed capacitor is when the top part seems kind of rounded and bubbled up, or when there is gel leaking from it. Remember, do not touch the terminals of a capacitor, even if the power is off, capacitors can hold electricity for a long time. (days, months, even years)!!!

  • bigjohnpap Nov 11, 2013

    I will give a few basic and easy steps of things to check first.
    1. If your air handler has a float switch either attached to the secondary 3/4 pvc drain, or to secondary drain pan, check to make sure the water level hasn't risen and activated the float switch. if it has, you will have to flush the primary drain line and/or primary drain pan(located inside the air handler).
    2. Check to see if the air handler is running(blowing air). if not, you'll want to check the breaker for the air handler- it might have tripped. if not tripped, you could have a bad 24v control transformer(inside air handler), or bad thermostat.
    3. If the air handler is running, you can go outside to check for a red reset button located on the outside unit, usually near the bottom. Sometimes when the coils are dirty, or the outside fan motor stops working due to a bad motor or capacitor, the pressure of refrigerant will rise and cause the reset button to trip. If its tripped and you reset it, and if the unit starts, check to make sure outside fan is running and coils are clean. If unit does not start, check the outside disconnect/ breaker to make sure it is on and/or not tripped. If you have a volt meter, you can check for 240volts. This is only if you know how to use a volt meter safely without getting electricuted. If power is present, then it could be the compressor contactor, or the dual capacitor, located in the outside unit, which operates the fan and compressor, and could be checked with a capacitance meter and/or a vom with a capacitor tester. Some signs of a failed capacitor is when the top part seems kind of rounded and bubbled up, or when there is gel leaking from it. Remember, do not touch the terminals of a capacitor, even if the power is off, capacitors can hold electricity for a long time. (days, months, even years)!!!

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Might be it is relay problem in pcb. Pls check the cord then relay by a technician,

Posted on Oct 15, 2013

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1 Answer

My a/c unit does comes on but it only warm air not


Make sure the outside unit is running, compressor and fan. Sometimes it is hard to hear the compressor over the fan. If the outside unit is not working check circuit breakers first. Set thermostat to call for a/c and make sure the contactor in the outside unit pulls in. If it does check capacitor for whatever is not running. If everything seems to be running fine hold your hand above the fan outside. The air coming from it should be hotter than the outdoor air. If it isn't get the refrigerant charge checked.

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2 Answers

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Yes, it is normal with a heatpump, you run the outside unit in cooling and heating.
It is also normal when the outside unit goes into defrost for the outdoor fan to shut off during the defrost mode and to see steam coming out of the outside unit, while it's melting the frost or ice, then the fan will come back on.

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first check breaker if breaker is not tripped check disconnect at outside unit use a volt meter to check voltage at disconnect

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Check the fan relay or contacts first. If the compressor comes on then your fan may be locked and will need replacing.

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1 Answer

Outside unit will not come on


Check breaker. Take panel off outside unit you will see a contactor there with contacts. Take a long screwdriver and push the center of the contactor. If the unit runs you have a control problem. Check inside float switch. Most of the time it is located underneath unit. The new ones are on the front bottom of unit with two wires from the Switch Lift the float switch and see if the unit comes on. Make sure Tstat calls for cool. If it comes on you have a stopped drain. Take a shop vac find the outside drain from the unit **** out the stoppage.

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Air handler comes on, but the outside unit will not and visa versa


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1 Answer

My blower inside my house will not come on. outside unit either


Initially, it doesn't sound like your thermostat is working.
If it has a setting to allow the blower (air mover) to be operated alone or continuously, try that.
Generally, if the inside unit (air mover) won't power up, the outside unit will not turn on for more than a couple of minutes because if the inside unit isn't working, pressure builds up in the lines going to the outside unit and an over-pressure sensor will shut it down again.  

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1 Answer

Outside unit not working


If the heating and cooling is working O.K. and maintaining the proper temperatures it is possible that your outside unit is in its off cycle. If the inside unit is running and the outside unit is not with an elevated temperature inside check the power supply to the outside unit. Most units have a disconnect located near them. Check the disconnect and make sure it is set to the on position. Listen for a hum noise at the outside unit which could indicate that the control power is being supplied to the contactor.

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1 Answer

Non-working outside unit


If your unit is blowing heat inside and it's not a heat pump. It will be most likely electric heat in your case.
Sounds like you have a split unit meaning the condenser is outside and the cooling and the heat features are inside or under your home.If your Rudd is a heat-pump the outside unit will cycle/blow cold air outside in winter and hot air will cycle/blow outside during the summer season. Now, if for some reason the heat  is not coming on inside the house, would be the only reason that you would need to be concerned. Being a heat relay or breaker of could cause that problem. Hope this helps you, Sea Breeze 

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