Question about Frigidaire Heating & Cooling

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A/C comes on, compressor runs. Changed out blower motor, and capacitor, transformer, and contacts. But the heat strips still come for some odd reason, and cant figure out what is wrong. Contacts by the strips was stuck together, more or less burnt up. What else could be wrong.....

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The thermal relay that controls the elements is probably welded shut. If elements come on and turn off with the a/c then something is wrong in the low voltage wiring. You will need an amp clamp meter to see which element(s) are running, check both wires going to each element as an element can break and short to ground causing it to run somewhat. Once you find what element(s) are running, trace the wires back to the sequencer. Check the bottom terminals on the sequencer for 24v. If you have 24v at sequencer, you have a problem with the low voltage wiring, if not then the sequencer has failed and must be replaced.

Posted on Jun 20, 2008

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Posted on Jan 02, 2017

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1 Answer

I have a Goodman phkj036-1f and the unit sounds like its kicking in and then right back out and not putting out any heat. A/C works like it should but heat doesnt


Sounds like the blower motor is wired to the load side of the A/C contactor relay/. In this condition the blower will only run when the compressor is running which is ok for a heat pump but if you are running electric heat only the blower motor needs one wire to the line side and one to the fan relay. That way the blower will run with heat or a/c. When the blower wont run the heat strips thermal protection will cycle them on and off

Nov 16, 2014 | Heating & Cooling

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you say its in your house and you have 3 phase electric??? Also when the motor was replaced was the motor run capacitor rated to new motor changed also ???

Nov 15, 2013 | Heating & Cooling

1 Answer

Rheem furnace had trouble blowing. blower replaced. capacitor replaced 3 times. fan still kicks on and off.


this is all on your inside unit??? Your blower motor has a capacitor? If so it sounds like you are using the wrong motor, the wrong capacitor, the wrong supply voltage or possibly even have the wrong transformer or it's not wired correctly on the primary side of transformer. any idea what the total external static pressure is on this machine, I'd be finding a different technician. best wishes!!

Oct 08, 2017 | Heating & Cooling

2 Answers

Cooling begins then indoor blower stops...outside unit continues to run


I had the same problem,if you do not monitor that you will make matters worst and burn the Compressor.your problem is the blower unit it has three speed sometimes four.it needs to be changed..

May 20, 2012 | Heating & Cooling

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Transformer keeps blowing on the high side after about 15 Min? Have changed out many transformers and blower motor.


Replace the transformer with a 75va resettable transformer.
Check all wiring for a loose connection at the unit and the disconnect and the breaker panel.
Double check ground wires.
Check the low voltage side for a back feed short from a faulty component.
Could be caused from a bad thermostat wire.
Do a continuity reading on stat wires to look for a short.
Do an amp draw reading on the unit to determine an increase in amperage.

Jul 18, 2011 | Ruud UBHC Air Conditioner

1 Answer

Fan will not turn on. heat coils heat up but blower will not spin. i installed a new blower motor and a new control board but still getting same results


When you changed the motor, did you change the capacitor? If the motor hums, but doesn't run, the capacitor may be the problem. Also, about a week or so ago, I changed a furnace blower and capacitor only to have it shut down again after 2 days. I talked with the vendor, and they told me that they had received a "bad batch of motors" and replaced the one that I had purchased.
If you didn't replace the capacitor, you should, then I would suspect the motor.

Best regards, and I hope this helps. --W/D--

Feb 09, 2011 | Amana Heating & Cooling

2 Answers

Outdoor fan does not come on


most likely it the the cap that is bad. Is this in heating or cooling mode?

Jun 03, 2010 | Heating & Cooling

2 Answers

Airconditioner wont come on


Does the indoor blower come on? If not you might have a low voltage problem in your thermostat circuit or blown breaker or fuse for your furnace which energizes the contactor outdoors. If indoor blower runs check if their are any fuses in your outdoor disconnect.

Apr 30, 2009 | Heating & Cooling

3 Answers

Problem with my AC unit


Hi Phillip,

Check your thermostat wires to see if you have any of them which are bare and touching. If any are touching separate them and tape em up and try unit again. You have a direst short in your cooling portion of the unit.

Feb 12, 2009 | Ruud UAMB Air Conditioner

1 Answer

High Pressure cutoff


YOUR OUTDOOR FAN MOTOR SHOULD NEVER SHUT OFF IN THE AC MODE. IT IS SUPPOSED TO SHUT OFF IN THE HEAT MODE WHEN ITS IN DEFROST. IF THE UNIT IS RUNNING IN COOL AND THE OUTSIDE MOTOR QUITS ,THE COMPRESSOR WILL QUIT SOON AFTER. EITHER THE RUN CAPACITOR FOR THE FAN IS BAD OR THE FAN MOTOR ITSELF IS BAD, IF CAP IS GOOD THEN THE MOTOR IS At FAULT. THE OUTDOOR PRESSURE SWITCH CAN ALSO OPEN IF THE INDOOR FAN MOTOR FAILS IN HEAT OR THE FILTER IS PLUM NASTY in heat OR THE INDOOR COIL IS PLUGGED UP in heat.. THE PRESSURE SWITCH USUALLY TRIPS AT 400 TO 425 SO ITS WORKING CORRECTLY. YOU MAY BE CONFUSING THE ISSUE SAYING THAT THE AIR IS HOT AND COLD INSIDE. IT IS COLD WHEN AC IS RUNNING HOT WHEN HEAT PUMP IS RUNNING IN HEAT BUT ESSENTIALLY not cold or hot if compressor isn't running, but a lot of folks describe the lack of cold air as hot when the compressor isnt running. but it basically is warm or house air temp.you test the capacitor with a capacitor tester or take it to motor shop and let them test it. odds are its a 5 , 7.5 or a 10. it should test within 10 % of rated value . ask for a RESCUE brand replacement motor. they are great ,reversable etc.carefully oil and sand the motor shaft and note exactly where the blade was located in relation to the grill so you get it back just the same. usually they wire up black to a leg of 220 power. white to the other leg of 220 power. brown and brown with white stripe to the capacitor.you can also pull whole fan shroud assembly on some units and take whole thing to motor shop and let them test motor cap, replace and all you do is return to unit and connect two power leads,

Oct 26, 2008 | Heating & Cooling

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