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Identify your Circuit Board

There are scores of different Furnace, Air Handler and Heat Pump Boards. Some are called Fan Timers, others Control Boards, Defrost Controls, Defrost Timers, Circuit Boards, Logic Boards and probably as many other names again, depending on the equipment or board manufacturers terminology!

We will TRY to make this as painless as possible with a couple of pictures below.

The shot below is of a YORK Ignition Control Part # 331-01933-000.
For use with the following YORK Furnaces using Hot Surface Ignition. (H.S.I.)

Models:
P1UK, PAKU, P2MP, P2MPV, P9MP, P2UR, PBLU, P2LN, P2DP, P3UR, PCLU, P1CX, PACR, XED; P (1,2) CD, P (A,B) ND, XND, DGD, GDD; P3HU, P3GEB, GUD, DGU, PCUH, P1DU, FL8; P3UR, G9T; FG9, P3DN, P3DH; PCDF, P2DR, PBLD, PBKM, PBKD, P1CK, PACE

The ball point pen is pointing to the Part # 331-01933-000. This is the number you are looking for on our web site when it pertains to these boards. MANY times the manufacturer will have superseded these numbers with a different number which REALLY confuses things for all of us. If you can't find your number on our site this is probably why! Call us with the number you have on your existing board, the brand of the equipment as well as the Model and Serial number found on the equipment and we will call the manufacturer for you for pricing and availability.

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Below is a close up of the same board.

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Below is a circuit Board for an older Carrier Furnace which uses a standing pilot or Spark Ignition system ( But will NOT work on the newer furnaces with Hot Surface Ignition ).

It's Part # HH84AA020 ( which by the way has been replaced with a new number ) is written on the Instructions that come from Carrier as you can see, but is not on the board. The only number on the board is on the upper left side # 302075-304 8227.

Are you confused now?

If you haven't found your board number on our site we will need the following information.

1. The Model Number of the Furnace, Air Handler or Outdoor Unit depending on the equipment you have.

2. The Serial Number of the Furnace, Air Handler or Outdoor Unit depending on the equipment you have.

3. Some Manufacturer's use Revision Numbers, Series Numbers, Product Numbers or Manufacturer's Numbers found usually where you found the Model and Serial Numbers.

4. Any numbers and manufacturers name found on the part you are trying to find a replacement for.

The reason these numbers are so important are many, but we will give one example for a Rheem Gas Furnace:

To get the correct Circuit Board or other parts such as an Inducer Motor Assembly we have to find not only the Model Number, but the GAS CODE which on a Rheem or Ruud Gas Furnace is the first (2) digits of the Serial number. Without this GAS CODE number we would be sending you a board or inducer that could not only work, but could be causing conflicts with safety controls. This example is for a Rheem/Ruud Furnace, but ALL the Manufacturers of Furnaces have similar ways of identifying part numbers!

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