ST9120U1011 Honeywell Universal Electronic Fan Timer

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  • ST9120U1011 Honeywell Universal Electronic Fan Timer
  • ST9120U1011 Honeywell Universal Electronic Fan Timer
List-Price: $119.68
Your-Price: $92.00
— You save $27.68


Universal Electronic Fan Timer Module integrates control of all combustion blower and circulating fan operations in a gas warm air appliance. Replaces Honeywell ST9101, ST9120, ST9141 or ST9160 fan modules. Includes cross reference, instructions, and accessories for easy replacement.


  • Replaces 40+ existing Honeywell electronic fan timers
  • Instruction sheet supplies full cross reference and wiring guide
  • Interface harnesses for simple conversion
  • Integrates control of all combustion blower and circulating fan operations in gas warm-air appliance
  • Replaceable fuse
  • DIP switch selectable heat and cool delay on and off times
  • LED lights for easy diagnostics
  • Electronic air cleaner and humidifier terminal connections
  • Continuous low speed indoor air circulation


Failure to follow instructions carefully can result in injury or cause damage to the product. Check the ratings given in the instructions to make sure the ST9120U module is suitable for your application. The installer must be a trained, experienced service technician. After installation is complete, check out operation as provided in these instructions. Acr4sale is not responsible for how the product is installed.
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Warranty Information

Seller Warranty for 1 Year.
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Additional Information

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14 Reviews

  • 5
    Honeywell Universal Fan Timer Board

    Posted by Ron on acr4sale

    The Honeywell ST9120U1011 is a well built product. So far I have experience with only one installation, and it went well. Following the instructions matters as this is a multi-system timer board. Just make sure you read the thorough instructions and adapt the part to your specific system. I recommend this fan timer based on my in-field experience and good results.

  • 5
    Excellent product

    Posted by Mike on acr4sale

    Beautifully engineered. Comes with harness adapters to replace over 40 common furnace control boards. Even provided the mounting screws. A must have product to stock every service truck.

  • 5
    Exactly what I needed.

    Posted by phillihanle-57 on acr4sale

    Item arrived quickly, which means a lot to me. It was the exact replacement part and solved my problem perfectly.

  • 5
    Installation not that straight forward.

    Posted by meemec.55 on acr4sale

    This is a universal replacement for several Honeywell boards so it's not an exact replacement. However, the instructions are clear with table that shows where each wire goes. It looks complicated but don't panic and follow the table and you'll be good. Also the mounting points are different, you may need a drill to make new holes.

  • 5
    Great feature. May replace many brand and many model made control board

    Posted by kentran128 on acr4sale

    Great universial control board

  • 5
    If you are going to replace your Heater controller board (that is covered by this one), this is it!

    Posted by suprasabre on acr4sale

    I save around $1,000 by replacing the board myself! Originally the company that I didn't know was ripping me off for the last two years, wanted $860 to replace the board. Then they wanted another $225 a year for their Maintenance service and to warranty the board and other parts they had ripped me off with!

    This board was easy to install, worked the first time and no issues! And at the cheapest price I found, how could I go wrong?

  • 5
    Works great

    Posted by rgfullerton51 on acr4sale

    Reliable and easy install
    PLUG and PLAY!

  • 5
    Honeywell st9120U1001

    Posted by rekansas on acr4sale

    Good product, got it 3 years without any problem. But it takes a little configuration because of universal product.

  • 5
    Honeywell st9120U1001

    Posted by John on acr4sale

    Good product, got it 3 years without any problem. But it takes a little configuration because of universal product.

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