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I'm looking universal furnace control board

Customer Question
Hello, I'm looking for a universal...
Hello,
I'm looking for a universal furnace control board that can replace a 4 speed PSC board which is no longer made for Trane/ American Standard - 2 stage furnaces.
The original board is d341418p01 and has suffered what I "think" is a partial failure when the 24 volt transformer failed. The red led light no longer comes on, even though I have verified 24 volt power is now getting to the board with the new transformer installed.
Unrelated, I have purchased a new 4 speed Mars ecm motor, so I would like to find a pcs board replacement that will use the full functionality of the new motor.
https://www.marsdelivers.com/item/10860/AZURE-ECM-1-5-1-2HP/
I believe the "upgraded" board D341122P01 is only 3-speed, so I'm looking to see if there is a different manufacturer's board that I could use.
Submitted: 2 years ago.Category: HVAC
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Answered in 25 minutes by:
7/29/2015
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,766
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hello,
even though the motor has 4 "available" speeds...you can only use 2.
one for heat and one for cool. The other speeds are for bumping cfm up or down..but there are always 2 unused speeds on a 4 speed. These are put on dummy terminals on the board labeled "park" or M1, M2...
the newest boards allow for a third speed but ONLY for fan on function. The motor does not shift gears in operation...
What was the white rodgers number on the board?...usually started with 50a or 55a
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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
http://www.ebay.com/itm/Trane-American-Standard-Furnac-Control-Circuit-Board-CNT3077-CNT03077-D341418P01-/370616020099
link above.
There is no board that controls 4 speeds...you have to pick what 2 speeds you want...just having 4 speeds available does not mean they are all used.
That is what the PARK terminals are for on board...unused speeds
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Customer reply replied 2 years ago
I suppose I'm confused in that the current board I have has a blade connection for high heat, low heat, high cool, and low cool, in addition to a single blade for park.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
Do you have a 2 speed ac unit?
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BillyHvac
BillyHvac
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