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Order By 3 PM CST For Same Day Fulfillment!
Order By 3 PM CST For Same Day Fulfillment!

LH33ZS004 Furnace Igniter for Carrier


Shipping Info

Same Day Shipping 

If you place your order between Monday - Friday before 3 p.m., your order will be shipped on that day. If you order on Saturday before 12 p.m., your order will be shipped on that day. If you place your order outside these times, call us at 1-802-727-4126 and we will do our best to get it out the door.


Quick Delivery, All Over The Country

We ship to 61% of the country in just 2 business days - See Shipping tab for more information!  Free shipping includes Saturday and Sunday delivery. 3-day delivery from the East Coast all the way to the rocky mountains and more!


We Stay On Top of It

We are using the most reliable options available. Even though all major carriers are experiencing delays, we are always happy to help. If you have a question about the status of your shipment, call us directly for the quickest response at 1-802-727-4126.

We’re Always Happy to Help

Our support team can be contacted via email at, or you can call us at 1-802-727-4126 during business hours. In the event that you need support outside of business hours, has an instant message support chat that can help you solve any problem. 


The furnace igniter is the part that tells the furnace to turn on. If the furnace is not igniting or not heating up, it could be a problem with the igniter.

  • This Furnace Igniter Directly Replaces the following Part #'s: 41-409, 1409, 271N, ER1409, LH33ZS001, LH33ZS002, LH33ZS003, LH33ZS004, 1409, ERP 271N, Norton 41-409, Robertshaw 67900, Mars 67916, Mars IG1409, Packard IG409, Supco LH33ZS001, Carrier LH33ZS002, Carrier LH33ZS003, Carrier LH33ZS004 
  • Quality you can Trust! All Snap Products are made with premium materials and are tested so they last.
  • Buy with Confidence! Snap Supply Parts always come with a 1 Year Warranty.
  • Installation Instructions available on our website!
  • Compatible with the following brands: Carrier, York, Norton, Mars, Packard, Robertshaw, Supco, ERP

Just because parts look the same does not mean that they are the same. Use the model numbers below to ensure that this part is compatible with your appliance! 

All Snap parts come with installation instructions to help you with your repair. If you need more help, you can always contact us for further assistance. Email us at or give us a call at 1-877-269-0086.

Model Numbers

Use ctrl+F then enter your model number in search bar and hit enter



Installation Instructions

Installation Instructions for LH33ZS004

Installation Instructions – Replacement Furnace Igniter for SNAP Supply, LLC’s products LH33ZS004

Tools Needed:

Flathead Screwdriver

Phillips Head Screwdriver

Socket Wrench

  1. Turn off power to your furnace.
  2. Turn off the gas to your furnace.
  3. Unscrew the top front access panel.
  4. Using a socket screw, unscrew the mounting bracket housing the old igniter.
  5. Disconnect the wiring to the old furnace igniter.
  6. Connect the new igniter to the wiring array.
  7. Place the new igniter into the mounting bracket, then screw the bracket back into the furnace.
  8. Replace the front access panel and screw it into place.
  9. Turn the gas supply on.
  10. Turn the power on.



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    Items bought from Snap Supply can be returned within 30 days of receipt of shipment. Alterations to Snap Supply products is a violation of the return policy and will result in a nonrefundable product. To ensure your satisfaction with our products please contact us with any questions.

    Click here for more about our Return Policy

    Free Shipping

    Shipping can be expensive, that is why Snap Supply provides free shipping on all orders! No minimum order amounts, that force you to buy something you don't need. Order before 1 PM Eastern and it will ship that same day!


    Buy with Confidence! Snap Supply Parts always come with a 1 Year Warranty.

    Click here to learn more about our Warranty Policy

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    1835 Wallace Ave.
    St. Charles, Illinois 60174
    Monday - Friday
    Order by 2pm, ships same day, for free!
    Pick-up between 9 am - 5 pm