Discount White Rodgers 50M56U-843 Universal Single Stage HSI Integrated

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List Price: $169.83
Sale Price: $102.60
Today's Bonus: 40% Off

I got this to replace a 50a55-480 controller for my Trane furnace (TDE080).

I got it instead of the cheaper 50a55-843 for 2 reasons:

1) It drives newer Silcon Nitride ignitors which are supposed to be more reliable than the older silicon carbide ignitors. It will also drive your existing silicon carbide ignitor.

2) This kit also includes an ignitor, worth about $25. I keep it as a spare until my SiC ignitor fails.

Installation is easy using the supplied instructions, but there are a few things to note:

1) The unit mounts to the same clips as the 50a55-480, but is about 1/2 inch wider on the left side (with LED).

2) The indicator LED is in a different place, so I had to drill a new 1/4" hole in the furnace to be able to see the light from the outside.

3) The harness adapter (F) works fine and provides a spade clip for the Flame Sensor. Also be sure to install the rollout jumper between pins 5 and 11. Trane furnaces don't have rollout sensors. I preferred to skip the adapter and do a little minor surgery to attach a spade clip directly to the flame sensor wire. The gas valve connection is OK as long as the controller is configured for a single-stage furnace.

4) When the thermostat's Fan-ON switch is set, most controllers enable the cool-H fan terminal. However, this controller enables the Heat-L terminal. You should connect a "parked" (red, blue, yellow) fan lead to Heat-L, or if you don't have air conditioning, connect the black cool-H lead to the Heat-L terminal instead.

5) As mentioned in a previous review, all of the 6 neutral spades are connected together, so it doesn't matter which ones you use. To be extra nerdy, put the incoming line-N on a center terminal and Fan-N and Xfrmr-N on the adjacent terminals.

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This was to replace a obsoleat one, the wireing instruction could have been more expliced to the one it is to replace.

I wouldn't have had to call in the HVAC guy, to be sure I had it right. It works the air, now if it works the heat and the humidifier in the heating season, the I'll upgrade my rateing to "Love IT", cause I sure saved a lota money.

Best Deals on White Rodgers 50M56U-843 Universal Single Stage HSI Integrated

Very easy installation, if you are a DIY type of person then replacing this control module will be a piece of cake. The instructions are clear. Came with a large selection of adapter connections for many different type of applications. The seller shipped out the product the same day it was ordered and was delivered a day early! Which was good because it was getting chilly in my house.

Honest reviews on White Rodgers 50M56U-843 Universal Single Stage HSI Integrated

It was the wrong board and the instructions said it was nonreturnable. If you need a control board, buy the Orem version.

Find helpful customer reviews and review ratings for White Rodgers 50M56U-843 Universal Single Stage HSI Integrated

glad to get this as our CENTRAL A/C wasn't working and it was getting HOT! took me awhile to figure it out but all is good. a tech would have charged me about 500 dollars to do this. i figured it out myself because i am a mechanic / computer guy.