bryant evolution control board


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Old 03-24-16, 04:02 AM
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bryant evolution control board

Hi i have a issue with a bryant evolution gas furnace original problem was the igniter burnt so had it replaced that fixed the problem but now the igniter would stay on for the heat cycle .the service guy said most likely the board is no good.so i ordered a used board from the internet installed it now the igniter works as it should but the blower fan stays to high all the time is there a way to set the fan speed .also i'm not sure if i ordered the right board the number on my old board is CEPL130456-01 that matches the new board but there is another # on the new board hk42f20224008 anyone know if these are the same boards .Thanks
 
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Old 03-24-16, 10:07 AM
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I'm confused.... you ordered a new board or you bought a used one from eBay ?

There is a manufacturer part number and a trade part number.

The board only turns on power to the blower motor. The speed is changed using different motor speed control windings. Check and see if your motor has multiple wire colors like: red, blue, black, white.

There are DIP switches on the board that control the blower. Did you set them ?
 
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Old 03-24-16, 12:14 PM
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Thanks for reply yes I got a used one I called around it is the correct board..the switches were set same as the old board the fan connection has blue.yellow green and red wires
 
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Old 03-24-16, 01:45 PM
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Does the furnace fire up and work normally..... blower aside ?

If yes... that may signify a defective control board as the board controls when the fan shuts off.

If there is a wire on the G terminal.... try disconnecting it and see if the blower stops.
 
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Old 03-24-16, 03:49 PM
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Hi yes everything works the only issue is that the fan is on high speed .if i put the old board in the fan runs as it should on low speed .thanks
 
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Old 03-24-16, 04:08 PM
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the fan does shuts off normally after the burners go off
 
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Old 03-24-16, 04:14 PM
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If the fan speed is correct with the old board but not the new board.... that would seem to indicate a motor lead on the wrong terminal.

If you look at the board.... there should be a place for the HEAT motor wire and the COOL motor wire. That black plug should be labeled.

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Old 03-24-16, 04:36 PM
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yes there is a plug in that spot with 2 wires they are in the first 2 holes left to right in pic. the fan does shut off
 
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Old 03-24-16, 04:59 PM
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its labeled VS HSI HI LO from left to right in your pic...i tried to post pic but can't
 
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Old 03-24-16, 05:08 PM
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Your picture may be too big. http://www.doityourself.com/forum/el...-pictures.html

I'm trying to find more info on that board. You said only the VS and HSI terminals have wires in them. The HI and LO do not. I don't know what's powering the blower if the HI and LO aren't connected.
 
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Old 03-24-16, 06:09 PM
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Old 03-24-16, 06:37 PM
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Old 03-25-16, 06:48 AM
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as you can see in the second pic the old board the burnt relay i guess that is what caused the initial problem with the igniter staying on ..
 
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Old 03-25-16, 09:40 AM
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I had thought the blower connected to slide on terminals. I don't see them on the board. I can't find a manual for that board. Post the model number for the furnace.

There will be a place where the blower speed can be reconnected for different speeds.
 
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Old 03-25-16, 10:57 AM
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Hey Pete thanks for all your effort trying to solve this ..the model #is 355MAVO42O60FHKA
 
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Old 03-26-16, 02:19 PM
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Hey Pete looks like i solved the problem after a lot of research i switched the model plug its a small circuit board from my old board to the new board on terminal PL4 on the control board the fan now runs on low speed and on high if the thermostat is not satisfied after several minutes .hope it continues to work normally .Thanks for all your input and hope this helps others ...
 
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Old 03-26-16, 02:43 PM
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Awesome job. Thanks for letting me know.
 
 

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