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Fan unit running 24/7 and strip heat is on - Bryant 462AJC021BA Air Conditioner

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Sounds like an electric heat sequencer is stuck closed keeping the unit running. If you turn the heat off at the thermostat, does the unit shut down?
Unless you are familier with electrical controls, i would recommend having a licensed A/C Co. out to test it.

Posted on Dec 30, 2010

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1 Answer

Fan not working


The fan relay is inside the unit. The thermostat switches 24 vac control voltage to the components like the heat strips, the compressor and outside fan as well as the inside fan motor. If the fan works with the heater and air conditioner then 24 vac is present. If not, then the 24vac transformer is bad. Sometimes you can find a fuse for the transformer, others have the fuse built internally and cannot be changed. If the inside fan is not working in the fan only mode then look at the thermostat as the problem.

Apr 26, 2016 | Heating & Cooling

1 Answer

I put new fan motor or heat pump now runs all time and doesat seem to heat well but line set going into a coil infurnace is hot


I would check the fan relay and especially the sequencer. I recently came across a problem with an older sequencer which had come partially apart and allowed the thermo disk to keep the fan running continuously. The sequencer controls not only the fan relay (24 volt), but the heating strips(220 volt) as well. Make sure all power is off to the unit and verify. Make a wiring diagram and take several pictures if necessary. Replace sequencer with only an Identical unit, even if you have to order it. The newer sequencers have two metal straps to prevent this problem from occurring.

Feb 15, 2011 | Heating & Cooling

1 Answer

The fan on my unit runs 24/7 is this normal?


only if heating 24/7 if not it sounds like fan sensor faulty as the fan would and most likely be controlled by a thermistor which works on a temperature to resistance and sounds like resistance breakdown which is causing the sensor to think its hotter than it really is and it always pays to get a service agent to repair such parts as stripping down of heater is involved

Nov 21, 2010 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

1 Answer

My coleman Mach Rv air conditioner with built in heat strip keeps tripping it's internal circuit breaker when running for any length of time. Just replaced heat strip with new one experienced same issue. I...


There should be an overload protection device in series with the low voltage wiring(t-stat wiring) Is it resting on the heat strip or too close to it? It is a saftey device to shut off the heat strips if the fan quits or a fire in the heat strip section. check that or by pass it, if it stays running then ur thermal protector is bad, couple bucks at the parts house.

Nov 06, 2010 | Coleman Mach III Air Conditioner

1 Answer

Center strip where doors seal is very warm to touch. Everything still cold in frig and freezer but sounds a bit unusual while it is running. We cleaned the coils under the frig..... center strip still...


Hi,

Welcome to FixYa.

I`ll start by letting you know first the heat between the doors is normal...to a degree, and done by design to help prevent moisture along the "breaker strip"/divider.( "where the doors come together when shut" )

If all else appears fine, temp. Ok, fans running, no significant frost build up on freezer back wall, it's likely nothing to be concerned about.

**Just be sure the condensor fan isn't jammed and still turning.** The fan at the back next to the compressor...In fact that is what I`d look for based on your post..."sounds a bit unusual while it is running"

If needed the new fan assembly comes in a complete kit, part # W10124096...

i.e.

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But just so you know, the amount of heat can be determined by several factor's such as,

1) temperature setting - lower ( colder ) the temperature is set the more the run time the hotter the strip.

2) The ambient temperature - hotter the environment the more the unit runs to compensate, hence the hotter the strip.

3) The amount of "fresh" content added to the unit ( especially freezer section if unfrozen items added ) - new items add a lot of warmth thus demanding the unit to run more to remove this heat (btu`s or british thermal unit`s )causing the strip to be hotter.

4) Build up of dust & dirt on the condensor coils - this also causes the unit to run excessively which in turn makes for more heat on this strip.

These are all things which can and do determine the amount of heat between the doors.

Another factor to always consider is of course If it is hot where you live the unit may just be running more to compensate as with other factors I mentioned.

Hope this answer's your question and let me know if I can assist you further.


Thank's for coming to "fixya" and good luck moving forward.

Please take a second to write a brief testimony and rate the info provided here.


Regards,

Macmarkus :)

Oct 21, 2010 | Estate TS25AFXKQ Side by Side Refrigerator

1 Answer

Have side by side and heater strip between doors is very hot.is there a switch to turn it off.suspect condensation heater.


Hi, Welcome to FixYa.

I`ll start by letting you know first the heat between the doors is normal...to a degree, and done by design to help prevent moisture along the "breaker strip"/divider.

If all else appears fine, temp. Ok, fans running, no significant frost build up on freezer back wall, it's likely nothing to be concerned about.

**Just be sure the condensor fan isn't jammed and still turning.** The fan at the back next to the compressor.

If you suspect it is hot to the "extreme" then here`s what to look for.

The amount of heat can be determined by several factor's such as,

1) temperature setting - lower ( colder ) the temperature is set the more the run time the hotter the strip.

2) The ambient temperature - hotter the environment the more the unit runs to compensate, hence the hotter the strip.

3) The amount of "fresh" content added to the unit ( especially freezer section if unfrozen items added ) - new items add a lot of warmth thus demanding the unit to run more to remove this heat (btu`s or british thermal unit`s )causing the strip to be hotter.

4) Build up of dust & dirt on the condensor coils - this also causes the unit to run excessively which in turn makes for more heat on this strip.

These are all things which can and do determine the amount of heat between the doors.

Another factor to always consider is of course If it is hot where you live the unit may just be running more to compensate as with other factors I mentioned.

Hope this answer's your question and let me know if I can assist you further. Thank's for coming to "fixya" and good luck moving forward.

Please take a second to rate the info provided here.

macmarkus :)

Aug 19, 2010 | Maytag Refrigerators

1 Answer

The divider that seperates the freezer from the fridge get hot to the touch, heats up the fridge door gasket


Hi, Welcome to FixYa.

I`ll start by letting you know first the heat between the doors is normal...to a degree, and done by design to help prevent moisture along the "breaker strip"/divider.

If all else appears fine, temp. Ok, fans running, no significant frost build up on freezer back wall, it's likely nothing to be concerned about.

**Just be sure the condensor fan isn't jammed and still turning.** The fan at the back next to the compressor.

The amount of heat can be determined by several factor's such as,

1) temperature setting - lower ( colder ) the temperature is set the more the run time the hotter the strip.

2) The ambient temperature - hotter the environment the more the unit runs to compensate, hence the hotter the strip.

3) The amount of "fresh" content added to the unit ( especially freezer section if unfrozen items added ) - new items add a lot of warmth thus demanding the unit to run more to remove this heat (btu`s or british thermal unit`s )causing the strip to be hotter.

4) Build up of dust & dirt on the condensor coils - this also causes the unit to run excessively which in turn makes for more heat on this strip.

These are all things which can and do determine the amount of heat between the doors.
Another factor to always consider is of course If it is hot where you live the unit may just be running more to compensate as with other factors I mentioned.

Hope this answer's your question and let me know if I can assist you further. Thank's for coming to "fixya" and good luck moving forward.

Please take a second to rate the info provided here.

macmarkus :)

Jul 31, 2010 | Maytag MSD2756G Side by Side Refrigerator

1 Answer

Indoor fan blowing cold air when on heating


The indoor fan will continue to run. When heat pump goes into defrost the outdoor fan stops, the reversing valve switches and the unit is basically working in the cooling mode. In order for you not to feel a blast of cold air in the winter the electric strip heat also comes on so the indoor fan must run while the strip heaters are on.

Jun 03, 2010 | Heating & Cooling

2 Answers

Carrier 38CKC042300. oUTSIDE UNIT FAN WAS TURNING REAL SLOW. ac UNIT IS OFF BUT FAN TO OUTSIDE UNIT IS STILL TURNING. sHOULD NOT BE TURNING AT ALL WITH AC UNIT OFF


The outside fan may run if the unit is in defrost mode this is normal for most heat pumps it is there way of trying to keep the outside unit from staying iced over so the next time the unit runs it will have air flow through the coil and the ice will not be there to prevent air flow.

Jan 12, 2010 | Carrier 38CKC042 Air Conditioner

1 Answer

No heat


need to know if its a heat pump or electric strip heat. if its a heat pump then compressor and outdoor fan will run on call for heat. being an intertherm and most of them are electric strips, i'll guess. the call for heat sends 24 volts to the heat sequencer. lots of wires connected to what is called a stack switch. wires closest to the mounting plate are 24 volts and when energized they heat up a bimetal disc that clicks on in 90 to 160 second s and energizes the first strip and fan and a few seconds later the 2nd and 3rd strips kick in. for every strip operating you pull about 20 amps. if fan is working then the other parts of the sequencer are failing to close and put power to the strips or the strips themselves are bad. these are very very confusing and tricky to work with. i have to work on them hot to observe where the problem lies. very dangerous as you are going to have to trip a 90 amp breaker if you make a mistake , not to mention the parts are not available except through wholesale only supply house. i feel pretty confident the sequencer is going to be bad and i think its probably best you call a pro to get this one squared away. sometimes when you are tinkering with old sequencers they literally crumble apart in front of you, they can get that brittle. it can be quite an adventure and not for the faint of heart when its hot. good luck.

Oct 28, 2008 | Intertherm P3RA-036K Air Conditioner

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