Whitfield Pressure Switch Kit For Some Advantage Models & Quest # 12145903

Sold out
SKU 12145903
MPN 12145903
  • Genuine Whitfield Part
  • Extremely Durable
  • Ships FREE with orders over $199
  • Express Shipping available!
  • 30-Day Hassle Free Returns!
  • 90 Day Warranty On All Items
  • Buy with confidence-Buy with the experts!
  • Learn More...


Whitfield Advantage/Quest Pressure Switch Kit

The Pellet Stove Pressure Switch Kit, by Lennox # 12145903.

The stove vacuum switch indicates to the stove that it has an airflow through the venting in the proper direction. If the vacuum switch doesn't register a pressure difference, it will not remain closed. When it opens the auger is stopped, depriving the stove of fuel and leading to shutdown

Replacement For Part Number s :
  • 12145903
  • 12125903

Compatible Models


  • Advantage I
  • Advantage II-T C
  • Advantage II-T
  • Quest Plus FS WP4
  • Quest Plus INS WP4


Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Items must be used in accordance with the manufacturers guidelines to qualify for warranty replacement. Please be advised that warranty claims for these parts may take up to 4 weeks for processing, and customers must cover shipping.

Shipping Info

This Item Qualifies For Free Shipping With Orders Over $199!

When Will My Order Ship

All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 1PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.

How Does Free Shipping Work?

Most orders over $199 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.

Is Expedited Shipping Available?

We offer both overnight and two day air shipping services for all orders placed within the Continental United States. For information on shipping cut-off times, go to our shipping page.

Do You Ship To Canada?

We ship to Canada! We estimate USPS to take 4-10 days once receiving your package from us. We do not offer expedited shipping of any kind to Canada. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.

Do You Ship To Alaska Or Hawii?

We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.

Do You Ship Outside The US Or Canada?

Unfortunately, at this time we do not offer international shipping other than to Canada.

If you wish to calculate shipping for an item which does not qualify for free shipping, or if you would like the cost to expedite your order, please do the following. Add the item you want to order to your cart and click here to be taken to the cart page where you can enter your country, state / province, and zip code for an estimate.

Shipping Time Estimations

For information on shipping time estimations, see either the Shipping Information & Transit Times on the cart page, or go to our shipping page.

Read More About Our Shipping Information

Customer Reviews

Based on 6 reviews
Whitfield pressure switch

Worked great up and running in no time.

It worked!

Our old stove is once again working like a champ. Thank you for the prompt service.

Vaccumn pressure switch

Part worked great. Delivery was very fast.

Representative was very helpful on

Representative was very helpful on the phone. Parts cam when promised!
Great Service

Pressure switch review

Hi, just received part 12145903, took10 minutes to install and ´´voila le, my stove is back to work,
Thank you for the fast service


Ask a Question
  • I have a Whitfield Advantage II-TC. The manual which I downloaded here shows the POSITIVE PRESSURE SWITCH pn# 12125903 and that coincides with the switch on the stove. This part number is 12145903 (4 instead of 2). Everything looks correct and I am sure this is the right part, but your thoughts?

    According to the manual this is the correct replacement part for that pellet stove.

  • Does it come with the hose?

    The switch does not come with a hose however the SRV7000-0450 hose fits it well and can be used.

  • I have a Whitfield profile 30-2 pellet stove. I need a pressure switch. Part no. Installed is 16020016. Is 12145903 the replacement? It looks identical. Other manuals I’ve looked up say part number 16050001 is the replacement, but it doesn’t look the same as the original .Thanks for any input

    Whitfield has changed the design of the vacuum switch they originally used at the beginning of manufacturing this pellet stove. Since then they have started installing the vacuum switch seen here: 16050001

Net Orders Checkout

Item Price Qty Total
Subtotal $0.00

Shipping Address

Shipping Methods