HVAC & Refrigeration Controls & Circuit Boards
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- $255.00Free shipping
- Pre-Owned · Honeywell$175.00Free shipping70 sold
- Brand New · Carrier$225.00or Best Offer$10.84 shipping
- Pre-Owned · Genteq$125.00Was: $150.00was - US $150.00Free shipping
Refurbished · Honeywell$69.00Free shipping- $80.98Free shipping1,943 sold
- $173.75Was: $222.40was - US $222.40Free shipping50 sold
- Brand New · Amana$135.00$17.15 shipping492 sold
- $50.00Free shipping595 sold
- Pre-Owned · Carrier$42.50Free shipping627 sold
- $198.00Free shippingOnly 1 left!
- Pre-Owned · Goodman$45.00Free shipping71 sold
- $149.00or Best OfferFree shippingOnly 3 left
- Brand New · Carrier$330.00or Best Offer$10.82 shipping
- Brand New · Honeywell$129.00Free shipping
- $125.00or Best Offer$10.00 shipping
- $103.72Free shipping
- $49.13Was: $61.20was - US $61.20Free shipping
- $109.99or Best OfferFree shipping72 sold
- $143.99Free shipping346 sold
- $95.00Free shipping34 sold
- $13.87Free shipping120 sold
- Brand New · PartsConnect$13.64or Best OfferFree shipping
- Brand New · GE$129.24Free shipping
- $259.00Trending at $279.00$19.95 shipping
- Brand New · Unbranded$38.49or Best OfferFree shipping
- Pre-Owned · Honeywell$120.00Free shipping474 sold
- Brand New · Carrier$14.99Free shipping423 sold
- Pre-Owned · Carrier$120.00Free shipping
- Pre-Owned · Amana$85.00or Best Offer$10.00 shipping
- Pre-Owned · Honeywell$140.00Free shipping
- Pre-Owned · LENNOX$165.00Free shipping9 watching
- Brand New · Unbranded$54.99or Best OfferFree shipping764 sold
- $3,695.63Free shipping
- Refurbished · Carrier$165.00Free shipping
- $55.00Free shipping285 sold
- $173.00Free shipping
- $138.90or Best OfferFree shipping
- $175.00or Best OfferFree shipping
- $199.99or Best OfferFree shipping
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- $399.99or Best OfferFree shipping
- Brand New · Carrier$40.88Was: $48.00was - US $48.00Free shipping
- $220.00Trending at $235.00Free shipping152 sold
- $75.00Free shipping380 sold
- $39.90Free shipping313 sold
- Brand New · Carrier$35.03Was: $38.49was - US $38.49or Best OfferFree shipping151 sold
- $358.00Free shipping103 sold
- Pre-Owned · Unbranded$105.00Free shipping
- Brand New · Johnson Controls$1,600.00or Best Offer$20.45 shipping
- Pre-Owned · Honeywell$75.00Free shipping241 sold
- $39.90Free shipping284 sold
- $175.00or Best OfferFree shippingOnly 3 left
- $80.00Free shipping55 sold
- Brand New · Carrier$735.00or Best OfferFree shippingOnly 2 left
- $99.99or Best OfferFree shipping301 sold
- $39.90Free shipping444 sold
- Brand New · PartsConnect$15.33Free shipping6,264 sold
- Brand New · Unbranded$38.49or Best OfferFree shipping
- Pre-Owned · Trane$152.00or Best OfferFree shipping64 sold
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- $525.99 New$299.98 Used
- $90.00 New$85.00 Used
Top rated
- 100% agree - Would recommend$55.00 New$35.00 Used
- 100% agree - Would recommend$13.39 New
Review highlights
Recommended by our customers50m56-743 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 PurchaseBest 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 PurchaseTechnically better replacement. Minor quality issue on edge contacts.
By toy-robot
Used this to replace an HH84AA0016 control board in a Carrier furnace. Works like the original and includes an addition... see all reviews
Verified PurchasePerfect replacement part
By carbuff7
My furnace burner was having a non start issue occasionally. All nozzles and filters and other adjustments were tried bu... 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 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 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 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 Purchase
