Question about Carrier XHB123D X/Y Series Heat/Cool Air Conditioner

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I have a carrier heatpump. The blower fan runs all the time. On the thermostat, I set the fan on auto, when the compressor shuts off the fan continues to run. ocassionally the fan will shut off but most of the time it continues to run.what can I do to correct this?

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6ya6ya
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Posted on Jan 02, 2017

  • 1214 Answers

SOURCE: rheem heat pump. blower will not turn off

The fans are set to delay for 60-90 seconds to remove all heat from the heat exchanger/heater elements.

If the fan runs any longer than 3-4 minutes after the Emergency Heat shuts off, you may have a bad sequencing relay in the air handler.

Posted on Jan 27, 2009

  • 38 Answers

SOURCE: Blower fan runs continually.

Dear excide,
The blower fan is not controlled by thermostat. The thermostat only cuts off the supply to compressor when the desired temperature is attained.To switch off the fan you have to switch off the supply to ac.
ramesh22

Posted on Jun 25, 2008

wbwill
  • 68 Answers

SOURCE: Carrier Weathermaker SX model 58SX060-CC Blower runs all the time

Remove all power from the furnace, it is likely the brain in the furnace is need of being reset, from the battery replacement, why did you change the battery, was there an indicator telling you to change it?

Many times just removing all the power to the furnace will do the trick with a reset, if not let me know and we will go from there, but it sounds like the main brain is confused or bad, more likely confused, so try the power removed first.

Than let me know wbwill@sbcglobal.net

Posted on Nov 22, 2008

  • 2 Answers

SOURCE: goodman a/c blower fan will not shut off

Pull the stat off the wall, if the unit fan continues to run then your fan relay is bad or receiving 24vac from another source.

Posted on Apr 07, 2009

cdarnell89
  • 16 Answers

SOURCE: my carrier a/c compressor unit won't start. it

Could be that the compressor is locked up or either start components are bad..... need to get an AMP gauge and see what the AMP draw is when you hear the compressor try to start which is the click, Hmmmm, click your hearing,

Posted on Jul 07, 2009

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2 Answers

2002 4 ton Bryant air conditioner shuts off, fan still runs but not cooling is problem in the controls in the attic or in the AC unit or both?


With a non heat pump it is a simple 24 volt AC control circuit. In the attic there is a relay that is actuated via the fan control wire directly from the thermostat. On the thermostat there is an auto/man switch that controls the fan. Manual the fan runs all the time. Auto fan turns on and off with the outside compressor.

If the system is not calling for cool and the fan continues to run the fan relay is sticking. common problem. Sometimes after running for several days the relay will stop sticking if not, replace relay.

If the system is calling for cool and the compressor stops I would still expect the fan to run until thermostat tells the A/C to off. Some compressor units include a safety switch or high-pressure cut-out switch A blocked internal valve bad control board or external fan in outside unit defective no air flow in outside unit.
High pressure cut out not good,

Suggest turning temp max cool and observe. If acceptable cool and the compressor runs without interruption all is good, except for the blower in the attic. Safely check relay in attic blower circuit.

Hope this helps.

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basic-thermostat-wiring-diagram-czwsw2ci0layswcsyy3dj4dr-4-5.jpg

Jun 28, 2017 | Bryant Heating & Cooling

3 Answers

I have new blower motor. it dosen't stop running


Could be a bad blower motor resistor,mounted by the blower.

Sep 28, 2016 | 2002 Dodge Ram Pickup 1500

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My domestic rv ac unit reaches the temp setpoint and the compressor shuts off but not the fan, it just keeps on running. Is this normal or should the fan shut off also?


Set fan setting to auto and not high or low setting. Fan will cycle with compressor after setting set to auto or " au" if a digital thermostat.

Mar 21, 2015 | Dometic Rooftop RV Air Conditioner

2 Answers

Goodman package heatpump blower motor contant running


check your themostat fan mode switch to see if it in on or auto. It should be in auto. If this does not stop indoor fan motor, (it may take up to 2 minutes for the fan to stop, preprogrammed shutoff in the thermostat and fan control cards may make you think the fan has not stopped ) If this does not stop the fan the fan control board in your air handler has a green wire shorting to 24 volt signal in the theromostat wire or the contact on the blower control card is stuck and will need replaced.

Feb 05, 2014 | Goodman Manufacturing Goodman GPH1348H41...

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We gave a Goodmn Hertz 60 Phase I heat pump - installed this summer....worked great for cooling..now that temps are dropping we are needing heat. When we turn it on it comes on but never heats. Think it...


If you changed the unit but didn't change the thermostat it is possible that the thermostat that you have will not work with that unit. I see that the unit you installed is a heat pump, you may have a straight cool T-Stat. If you put the T-Stat in the "Auto" "Heat" mode the outdoor fan and the compressor should be workng as well as the blower fan. If it turns out that the outdoor fan and compressor are not running you will want to buy a Thernostat that is compatable with heatpumps should be 2 heat/ 1 cool

Nov 05, 2010 | Goodman PHKJ048-1 Air Conditioner

1 Answer

Blower cuts off when compressor comes on. Blower


Try the fan"on/auto"function switch at the thermostat when the compressor is on.Set fan to on.Does blower run?

Mar 19, 2010 | Coleman Heating & Cooling

1 Answer

Possible Contactor Issue


Sounds like a bad fan switch in your unit. That unit has a fan board in it that is time delay on and off. Turn the fan to the on position and let it run all the time. If it keeps temp and does not shut off it is the fan realy board. The board also controls the compressor. Check that first and then the tsat. Russ

Jul 24, 2009 | Carrier 38CKC042 Air Conditioner

1 Answer

AC/Heatpump units cycle numerous times blowing ambient air.


If the compressor never kicks in, I would check the start capacitor, thermostat and the compressor windings. Most times the start capacitor is defective. Some window air conditioners the fan will run while the compressor stop through the thermostat switch. If the thermostat switch is bad every thing runs except the compressor. Let me know, Thanks, Sea Breeze

Feb 07, 2009 | Dometic Rooftop RV Air Conditioner

2 Answers

BLOWER FAN WONT SHUT OFF WHEN THERMOSTATE IS OFF


The compressor coming on when the contact is pushed is o.k. they all do that. As for the blower fan not shutting off, some brands (Payne for example) the heating fan relay is a n.c. (normally closed ) relay. so if the time delay relay or thermal link are bad or not connected, the fan will blow even when it is turned off.

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