HVAC & Refrigeration Controls & Circuit Boards
Shop by category
90,103 results
Sort: Best Match
- Pre-Owned · Honeywell$175.00Free shipping58 sold
- Brand New · Daikin$300.00or Best OfferFree shipping
- Pre-Owned · Trane$152.00or Best OfferFree shipping60 sold
- Pre-Owned · Honeywell$265.00Free shipping
$231.00or Best Offer$12.25 shipping- Pre-Owned · White-Rodgers$249.05or Best OfferFree shipping
- $1,199.99or Best OfferFree shipping
- Brand New · Amana$135.00$17.15 shipping417 sold
- Brand New · PartsConnect$11.89Free shipping6,245 sold
- Brand New · Honeywell$749.99or Best OfferFree shipping
- $235.00Free shipping134 sold
- $99.00Free shipping
- $233.99$19.99 shipping
- Brand New · LENNOX$799.99Only 1 left!
- $233.99$19.99 shipping
- $198.00Free shippingOnly 1 left!
- Brand New$55.00$9.39 shipping
- $210.00Free shipping
- $175.95or Best OfferFree shipping
- $120.00or Best Offer$5.80 shipping
- Pre-Owned · Honeywell$140.00Free shipping
- Refurbished · Carrier$165.00Free shipping
- $50.00Free shipping566 sold
- Brand New · ICM$100.00Free shippingOnly 1 left!
- $84.50Free shipping1,878 sold
- Refurbished · Amana$55.00Free shipping
- $143.99Free shippingOnly 2 left
- Authentic Honeywell Ignition Control. New in box.Brand New · Honeywell$90.00Free shipping1,253 sold
- $160.00$9.20 shipping67 sold
- Brand New · Honeywell$139.99Free shipping
- Pre-Owned · LENNOX$135.00Free shipping
- Brand New · Carrier$239.00Free shipping
- 7,000+ Brands. Free Shipping. Hassle Free Returns.Brand New · Robertshaw$178.99Free shipping
- Brand New · Johnson Controls$105.00or Best Offer$6.84 shipping
- $249.00$14.95 shipping
- $107.77Free shipping
- Refurbished · Raypak$102.81Was: $149.00was - US $149.00Free shipping113 sold
- $249.99or Best Offer$15.80 shippingOnly 1 left!
- $55.00Free shipping266 sold
- Pre-Owned · Honeywell$75.00Free shipping232 sold
- $109.99or Best OfferFree shipping
- Pre-Owned · Johnson Controls$199.99or Best OfferFree shipping
- Pre-Owned · Goodman$40.00Free shipping519 sold
- $73.98Free shipping81 sold
- Brand New · PartsConnect$13.64or Best OfferFree shipping
- $96.50Free shipping123 sold
- Brand New · LENNOX$36.52Was: $49.04was - US $49.04Free shipping
- $24.99or Best OfferFree shipping265 sold
- $79.00Free shipping
- $81.99Free shipping
- Brand New · Honeywell$289.95Free shipping
- Pre-Owned · Honeywell$120.00Free shipping458 sold
- Fuse Tester UL Rated 24V AC/DC & 125/250V ACBrand New$18.95Free shipping55 sold
- $173.75Was: $222.40was - US $222.40Free shipping
- Pre-Owned · Carrier$80.00Free shipping15 sold
- $699.99or Best OfferFree shipping
- $47.50Trending at $98.13$8.71 shipping
- Pre-Owned · Carrier$530.00or Best OfferFree shipping5 watching
- $89.00or Best Offer$5.00 shipping3 watching
Best selling
- $95.50 New$85.00 Used
Top rated
- 100% agree - Would recommend$99.95 New$75.00 Used
- 100% agree - Would recommend$6.12 New
- 100% agree - Would recommend$14.38 New
Review highlights
Recommended by our customersBest decision I ever made I used to buy used one
By rolo0629
But I was tired of replacing every year or having problems one or another so new is the must and best way to go and it’s... see all reviews
Verified PurchaseGreat coupling for Becketts products.
By henmo_3
It is made of good quality materials. Some of the same thing is made of paper. I would recommend it to everyone who need... see all reviews
Verified Purchase50m56-743 control board
By amphand
I ordered this board for a friend who was flooded with 4 feet of water in her basement, but it only got into the furnace... see all reviews
Verified PurchaseUsed for an outdoor wood burning furnace...works fantastic!
By hanoftherox
Very easy to program. Wiring instructions were easy to follow and applied to my application. Was able to cut the probe w... see all reviews
Verified PurchaseFixed my furnace issue
By beezler123
Fixed an issue where gas control valve wouldn’t open. Had replaced valve earlier but that wasn’t the issue. This did t... see all reviews
Verified PurchaseGood furnance fan control switch
By pabresler30
This is a temperature controlled furnace fan control switch with both high limits to shut off the furnace if it gets too... see all reviews
Verified PurchaseGood Flame Detector/CAD Cell
By wjcandee
This is a good quality replacement CAD cell at a good price. A certain design of boiler, across several manufacturers, ... see all reviews
Verified PurchaseWorks as advertised, easy install
By cosine68
Installed on working Rheem 4 ton central air unit, dropped starting amperage draws dramatically. Home lights quit dimmin... see all reviews
Verified Purchase
