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Bryant furnace model 340mav. Furnace filter got extrey dirty due to updates in home. Started to freeze up. Caught it pretty early. Turned off unit. Thawed it out. Turned wl unit to off. Woke up in am. Furnace blower motor running. Code flashing red on furnace. Three quick red. Three longer red. Blower will not shut off unless I turn off manual switch

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Posted on Jan 02, 2017

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SOURCE: blower motor in home air conditioner does not work

The most common failure for this problem is either the start/run capacitor or the fan motor. IF YOU ARE NOT experienced with electricity then I would strongly suggest hiring a technician. The volts are 220 with a potential of 50 amps in a common residential unit.

If you are knowledgeable in this area then make sure the motor has volts to it. If it does have volts and does not spin, it is bad. You can sometimes tell by feeling the motor it will probably be very hot. The compressor will eventually shut itself off when it over heats. It usually will restart after it cools down(sometimes many hours). The motor and capacitor are pretty generic and can be matched up at a local Grainger store or whatever Retail, specialty store that you have in your area.

I hope this helps:)

Posted on Jun 25, 2008

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Model 393 Bryant furnace fan or motor makes noise when first starting. Then it's quiet.


https://www.repairclinic.com/PartDetail/Bryant-Furnace-Dual-Run-Capacitor/P2914553RS/2386586?ss=a36b380&mr=0

That part is probably going bad. The motor uses it to get moving and when it fails then the motor wont start, makes buzzing or humming noise due to phase loss.

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If the furnace is cycling on and off and not reaching temp there is a problem in the control circuit. If the thermostat is not satisfied the furnace should be running without shutting off in which case the capacity of the furnace is inadequate because of size or problems reducing the capacity. This could be caused by an increase in home size, poor air flow (dirty filter, loose fan belts, fan running slow, obstructions in the duct), dirty heat exchanger or burner, reduced gas flow, over temperature switch bad causing the burner to shut off early, or a few more technical reasons. You may do well to call a technician to troubleshoot this problem.

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WIRING DIAGRAM FOR BRYANT 127ANA036-A


The blue wire from the Ac goes to the y2 on the board for the furnace the yellow and brown goes to c on the board for the furnace and the last wire goes to y1 on the board for the furnace

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I have a Carrier model # 58MXA080-F-15112. I think my furnace is 30 plus years old. it isn't heating properly. The blower turns on and sometimes the flames come on, but sometimes they don't. As...


A 13 code means the furnace cycled on limit more than three times consecutively and is in a lockout for 3 hours. A 14 is ignition lockout. An ignitor does not intermittently quit working. I'm the service mgr at our shop, and I know that particular furnace model has a service bulletin out on bad secondary heat exchangers. If your lucky the filter is dirty, or the furnace condensate trap or drain is clogged. Most likely the secondary heat exchanger is plugged up and isn't allowing the pressure switch to make. Or the furnace is overheating due to it not being able to properly vent hot gas. Which would explain the high limit lockouts. Call an authorized carrier dealer so you can take advantage of the free heat exchangers and the $300 labor credit. You can also call an authorized Bryant dealer to perform the work for you. Only an authorized dealer can rectify this problem because the Bryant corp requires testing and paperwork in order to get your free parts and labor credit.
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Furnace blowing warm air, ac overheats


Sounds like it is tripping on it's high pressure switch. This could be caused by a dirty condenser coil, overcharge of refrigerant, or non condensables in the system ( air most likely). I would get a second opinion from a repuatable company, sounds like he's trying to rip you off.

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I have a Bryant Model 340MAV and the airconditioning fan is loud when running but seems to operating fine otherwise..fan is running and cooling great..the oustide coil was replaced in April. Please advise


Hi,
Sounds like the motor is going bad in the air handler/furnace now...
Open up the blower compartment and spin the blower by hand with the power off...you should be able to hear if the bearings are rough or if the blower is hitting something... then you will know what you need to fix...

heatman101

Aug 29, 2011 | Heating & Cooling

1 Answer

On the thermostat the "filter"


Thermostats used in homes sometimes have a timer built in which will remind you to change your furnace filter. Most of them can be adjusted or disabled. The thermostat has no way of knowing whether the filter is actually dirty, it just reminds you every so often by flashing "filter" on the display.

It is possible to reset the timer, or adjust how often it appears, or disable it completely. Exactly how to do that depends on the make and model of your thermostat. Often, it is simply a case of holding two buttons at the same time for a few seconds.

As to why the furnace doesn't come on, there can be many reasons. The problem likely is not the "filter" flashing on the display of your thermostat. Try resetting the breakers that service the furnace unit itself. Make sure that the thermostat is set to "heat" and the setting is turned up. If the thermostat uses batteries (most do these days), replace them.

If this doesn't work, the following information will be helpful to get the furnace running again:
Brand
Model number
Age of furnace
Location in home
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