Question about Heating & Cooling
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Posted on Jan 02, 2017
If no blowing air is coming out to your ac or evaporator fin,your blowing fan is not working.There are several factor to check qualified electrician or ac techician should do this.If you have knowledge on electricity and motor control,beside you should have clamp ammeter to use in trouble shooting of ac electrical circuit.Unplug your ac If there is an opening of blower fan of your ac mostly the top cover open this one locate the wire connection of blowing fan take the color and size.Open the terminal box below the control panel of ac and locate the wire of blowing fan.Check how many leads make sure to make sketch where it was connected from low,medium, and high there is coded color on it,discannect from the terminal, using clamp ammeter set to ohms probe setting R10 check continuinity of winding motor start at common lines(mostly balck color) of one test rod and the other to starting line(mostly red color)take and read the resistance if has a higher resistance your motor is burn out, also with the running line w/c has multple line for speed.If resistance complied to your motor rating or good,If not or burn out replace fun motor.Check your capacitor,doing this set your ohmeter to a higher resistance,connect one red test rod (+) one terminal of capacitor and one black test rod on (-)the other terminal the pointer will deflect steady to higher resistance then reverse the connection of the test rod,the pointer deflect again to higest resistance it will go slow backward setting to zero if you got this result your capacitor is good.But if it does not go set back to zero your capacitor is short.Replaced capaciter.
Posted on Mar 13, 2009
SOURCE: furnace blowing 5 amp fuses
This is caused by a low voltage short. Most often it's the T-stat wires going to the condenser unit outside. Check to see if the insulation on the wires have degraded and replace them if necessary. Also, if the wire has been spliced before redue the joint and weather seal it so that it won't happen again. This is what I do for a living so if you have any more questions, please feel free to ask more questions.
Posted on Mar 21, 2009
First check to see if you have afloat switch inside the air handler ar underneath the air handler. Its purpose is to shut the outside ac off if the drain stops up. Very common. If this is OK take cover off unit and with screw driver push in the contactor. It is located about the middle of the panel. It has main power at the bottom. If unit comes on you cave a control voltage problem. Meaning something is not allowing 24 volts to the contactor. If your out of Refrigerant the low pressure swich will have it off. Call a service tech. Rusty
Posted on Jun 09, 2009
I have a furnace in my rental home that I moved into recently. I believe the air return vent is on the bottom near the floor where air gets sucked in. there is a small closet door that hides the furnace. It has two metal plates on the furnace that can be removed with a tool. The lower plate has the air condition grill but there is no way to place a filter inside. It slants at an angle and when a filter is cut to fit it, there is no way it will hold. It falls. There was no filter when I moved in. The up flow vent has no place to hold a filter either. It is an old GE model # Bwv92461010 serial # 901924818. I don't know what to do.-Nancy
Posted on Jul 20, 2009
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