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Carrier weathermaker cd5axa036

I have this unit and the furnace will not work. Cooling system works fine but furnace will not operate. The circuit board has been replaced two yeas ago and now seems to have failed again. The red LED is blinking and service tech says this is due to short in the board. He has priced the board at $300.00. Does this sound accurate? Is this board available for a better price?

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Carrier Weathermaker 8000 - furnace does not ignite

having a problem with a weather maker 8000. It will not come on at all unless I shut down the switch on the side of the furnace. filters is clean. it will start to light then stop

Posted on Dec 20, 2008

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pierre1811
  • 144 Answers

SOURCE: Carrier Weathermaker SX (model 58SX100)

There is a small tube that comes off the inducer for cracks or water. If there are cracks then the pressure switch that it is attached to may not be closing all of the time. Also sometimes you can get water in that tubing which will also cause the pressure switch to not close. If thats the case shorten the tube so there is no low droop in it where water can collect. Another thing that I would do is disconnect the tube at the indicer, take a straightened out paper clip or stiff wire and poke it in the nipple on the inducer to make sure it is clear too. Let me know if any of these work. There may be other things we can do.

Posted on Jan 19, 2009

farfield
  • 462 Answers

SOURCE: Carrier Weathermaker SXI Model 58SX8100LG Code 12

Code 12 I believe is power up after power off and a call for heat from the the thermostat. If you have a weak door switch that may be vibrating and going on and off it would cause this as would any thing that causes the power to drop low or out then reapply its self. try holding the door switch in while watching the board and after 2 or 3 minutes the furnace should go on to lite and the blower cycle off. If it stays in this mode try turning the thermostat off (heat - OFF -cool) and then push in the door switch nothing should happen except the lite on the board come on and stay on. If it does this than have someone turn the thermostat to heat and see if it starts or put the door on and set the heat and see if *** goes through the normal cycle of heating. If however it goes right back into the blower mode and shows the 12 code your problem is still with you. So next remove the wire on the "W" terminal on the board. Retry power to the door switch and now nothing should be on except the red lite. If it tries to start the 12 code and blower up again Im pretty sure you have a bad ignition/blower control board.

Posted on Mar 09, 2009

  • 744 Answers

SOURCE: carrier furnace model # 58PAV090-14 fan runs but

See the link:

http://hvac-talk.com/vbb/showthread.php?t=77420

Posted on Mar 19, 2009

  • 400 Answers

SOURCE: Carrier weathermaker sx (58SX)furnace makes a

This can be from a bad connection on a contactor relay. Or can also sometimes indicate a bad capacitor.

Posted on Nov 18, 2009

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