Cost to Replace a Furnace Motherboard Control Board

By | February 20, 2018

Cost to Replace a Furnace Motherboard Control Board

If your furnace needs a new control board the average cost for a HVAC technician to install it is $400-$600 dollars.
If you are a home DIY type of person furnace control boards can be bought online for $50-$250 dollars depending on the furnace.
Doing it yourself is very tempting so let’s look at a few things needed to do it.
Cost to Replace a Furnace Motherboard Control Board 22
First be sure the board is bad. This often requires a HVAC tech to look at the furnace since there are so many variables.
The control board should have a LED that flashes error codes. The codes often are listed on the panel door or somewhere in the unit.
If you have already gotten this diagnosis from a HVAC company more than likely that is the problem.
Buying the correct board online is the next step.
I personally usually use Amazon but this is simply a personal choice as they have a large selection eBay also has a good selection.
If you order a board be sure to match the part number from the old board or the name and model of the furnace.
Example Furnace Control Board On Amazon.
ICM Controls ICM2801 Furnace Control Replacement for York/Evcon 7990-319P Control Boards

Steps To Replacing Furnace Control Board
Every furnace will be slightly different and the manufacture directions should always be followed.

  1. Unplug the furnace.

  3. Take picture with your phone of the wiring and possibly a video. Simply be sure you have a reference to fall back to for what wires went were.

  5. Before handling the new board ground your hand on a metal surface since static electricity can damage control boards.

  7. Remove the screws holding it in place. Try to leave the wires attached if possible, if this is not possible than transfer the wires one at a time to the new board.
  8. Cost to Replace a Furnace Motherboard 22

  9. Insert the new board and screw it into place.

  11. Attach the wires to their correct location.
  12. How To Replace A Furnace Motherboard Control Board

  13. Verify the wiring is correct from the picture that was taken.

  15. Plug the furnace back in and test it.

The cost fo a HVAC tech to replace a furnace control board can be high but is necessary if you don’t feel comfortable doing it yourself.
It does not take a lot of skill to replace a furnace control board but if you do be sure to watch a few videos like those listed below.
Also be sure to get the correct replacement board using the part number.



8 thoughts on “Cost to Replace a Furnace Motherboard Control Board

  1. Stephen Brown

    I just bought a used Circuit Board for my Bryant Heat Pump. What a godsend.
    The HVAC guys that tried to troubleshoot the problem, could’t figure it out in two house calls.
    Around $300 for two visits. Communication Error code.
    I chased out the wiring continuity. No faults.
    It has to be the board.
    So I look up the Replacement Board for my model and it’s $500.
    I ordered a used one for $70. Installed it in about 20 minutes and my heat pump works perfectly again.
    Everyone should know about this option.
    If you are the least bit handy, this kind of fix is incredible.
    Thank you for discussing this amazing option.

    Here’s another experience .
    I just replaced the controller board on a furnace at one of my rentals.
    Another three visits from HVAC specialists, two who didn’t even check the board, just replaced the thermostat and cleaned the flame sensor. $400 altogether.
    After being told by the last tech that the board replacement would again be $500 and that they would replace the furnace for $2000, I bought a replacement board and again, installed it in 20 minutes.
    Worked perfectly once again.
    Not all HVAC techs are created the same. Just like all lawyer.
    There is an inherent conflict of interest when it comes to servicing a client.
    Unfortunately, there is a lot of motivation toward getting a client to spend their money.
    Even your handyman could replace a furnace board.

  2. Scott

    “It doesn’t take a lot of skill to replace a control board”!? Lets say you need to fight an insurance company to receive your proper dues. Are you going to fight them? NO, YOU ARE CALLING A LAWYER! Why? He or she has SKILL and KNOWLEDGE OF THE LAWS! If you have gone to school, obtaining expensive tools, working long hours, additional training due to new efficiency standards, troubleshooting accurately and properly, taking the proper readings as per manufacturers specifications, making sure there are no other reasons for said breakdown, and making sure the system is safe to use afterward, you would not have made that statement. DO NOT FEED THAT NONSENSE TO THE PUBLIC! This is the reason we trained and certified service technicians across the industry have a difficult time with clients.

    1. ken

      Some repairs require advanced knowledge, some are simple parts tradeouts. I had a burnt out heating element in my oven. Two screws. Check with an ohmmeter. $15 for the element on Amazon. Now, a repair person would charge minimum $100 labor and would mark the part up to $ $200 vs. $15 and an hour of my time.

      Would I mess with gas connections? No. Diagnose complex wiring problems? No. But don’t tell me you need to be an expert to solve simple parts replacement.

  3. Heather Ziebarth

    Our control board actually burned up. HVAC guys think we should replace the whole furnace because we don’t know what caused the fire. Could the fire have been just the control board itself?

  4. Deborah Huffman

    How does the board cost and the cost to have it replaced. My furnace is 28 years old and its a ruud

  5. Jerome Tresvant

    Color wires and where does the positive and negative plug go?
    How to replace control board for. Wire

  6. Cookie

    Thanks.i have a guideline to follow now.was in the blind-cost-steps .hired Hvac for repairs today


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