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Universal Silicon Carbide Integrated Ignition Control
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$135.23 each
In Stock
Order by 6PM, receive Tomorrow
MANUALS (6)
This item replaces: 50A55-143, 50A55-286, 50A50-571, 50A50-285, 50A55-285, 50A55-571, 50A55-288, 50A55-474, S1-33102956000, 50A50-288, 50A55-476, 50A50-286, 50A50-143, 50A50-474, 50A50-438, 50A50-207, 50A55-438
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Description
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Please note: This SKU is a direct replacement for 50A50-241
The 50A55-843 Universal Silicon Carbide Integrated Ignition module employs a microprocessor which continually monitors, analyzes and controls the proper operation of the gas burner, inducer and fan. The Universal Module includes an extensive cross-reference, additional jumper wires, an additional wiring harness and a jumper for Trane applications. The module also has terminals for powering a humidifier and electronic air cleaner.
Specifications
- Input Voltage: 25 VAC 50/60 Hz
- Maximum Input Current: 25 VAC . 0.45 amp
- Valve Relay: 1.5 amp @ 25 VAC 50/60 Hz 0.6 pf
- Ignitor Relay: 6.0 amp @ 120 VAC 50/60 Hz (resistive)
- Inducer Relay: 2.2 FLA - 3.5 LRA @ 120 VAC
- Circulator Relay: 14.5 FLA - 25.0 LRA @ 120 VAC
- Operating Temperature Range: -40 to +175°F (-40 to +79°C)
- Humidity Range: 5% to 93% relative humidity
Features
- Includes flash code diagnostics
- Fused to protect low voltage system transformers
- Includes mounting hole template
- Input Voltage - 25 VAC 50/60 Hz
- Adjustable blower relay
Questions?
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Product Reviews
4.81 out of 153 reviews
98% would recommend this product
5 star
91%
4 star
5%
3 star
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Customer Images
Most Liked Positive Review
Work great!
White Roger recommends this unit to replace it's older 50A50 line of controller board and it works as advertised. You may have to jumper the OD1 and OD2 pins on the 12-pin connector if your furnace don't support this feature. Look to see if there are wires on the OD1 and OD2 pin of your existing 12-pin connector. The pin layout is on the controller board. Use the black jumper wire that come with the replacement unit to jumper these two pins on your existing 12-pin connector if your furnace doesn't support this safety feature.
What I really like about this replacement unit is the on-board diagnostic function indicated by the flashing LED and the product manual that came with the package. After I installed the unit and power on, the diagnostic LED flashes 5 times so I looked up in the manual to find the OD1 & OD2 issue. Since my old furnace doesn't have this feature, I jumper the two pins and power the unit on again. This time the diagnostic LED flashes 4 time indicating the (temperature) limit switch is open. I look up on the internet to find out what the limit switch looks like, locate the switch and ohm it out (with the power OFF). Apparently my limit switch is stuck open and need to be replaced. A temporary fix is to unstick the switch by flicking my finger against it several times. This will work until it stuck open again so REPLACE this part. When I put everything back together, the furnace came on and the family have heat once again.
Apparently my old controller board still work b'cuz my problem was the limit switch stuck open. However, the diagnostic function on the old controller board did not help me to figure out the problem so I opted to leave the new one in my furnace. This newer unit will help me to diagnostic any problems that may occurred in the future.
VS
Most Liked Negative Review
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Not a replacement for 50A50-405
I purchased the 50A55-843 as a replacement for the 50A50-405 on a Cumberland Model FCAC100A50A1 that was used for the second stage heat in a dual-fuel heat pump system. When installed in furnace the blower would run all the time and the burners would not come on when the system was calling for emergancy heat. This was the case regardless of where the thermostat was set. Found a new 50A50-405 locally, installed it and everything went back to working.
Showing 1-10 of 153 reviews
Excellent customer service
I've ordered lots of parts through supply house normally w no issues. This board stop working after about 6 months and I contacted customer service. They expedited my replacement board. It was at my door in under 24 hrs from it being shipped.. excellent customer service
Phil
Louisiana
3 months ago
Verified Buyer
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Great return policy.
Ordered two parts. First one was the wrong part. They took it back and sent me the correct part.
TC
Madison GA
3 months ago
Verified Buyer
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Perfect replacement
My outdated control board failed on the fan control relay due to burned out relay switch. This was the listed replacement option. I was a little concerned because the board was not an exact match but all indications showed that this was the upgraded replacement so I took a chance. All the connections were the same but some were in different locations on the board. Very easy upgrade and swap.
Happy
Sr Louis
4 months ago
Verified Buyer
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I recommend thos part
Perfect solution to a customers furnace issue.
Mick
SC
5 months ago
Verified Buyer
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I will recommend supply house to others
Repaired my sister in laws furnace. Customer service was outstanding
ray
SC
5 months ago
Verified Buyer
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Last two DOA
Last two ordered were DOA in the 24v side. 24v not present at R terminal when power is applied.
Double A
Missouri
6 months ago
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I would by this control board again
Fast shipping furnace was back working in 2 day
Paul
Twin Falls
7 months ago
Verified Buyer
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Worked wonderfully
My husband and myself installed. Took one wire at a time and transfered to new board. Turned on furnance and it works great. Just in time for cold.
Fancy
Pittsburgh
7 months ago
Verified Buyer
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Exact replacement. Working great
Plug and play, exact replacement. Working great so far.
C121
IL
12 months ago
Verified Buyer
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Perfect replacement for 50A50-288 (10207710)
The rats nests left behind over the years by those rushed Houston HVAC contractors finally has taken its toll.... Somehow, the R wire of the 24V control got contact with 110V, and fried the old control board.... and the Nest thermostat too. So I decided to rewire both the furnace (an old Amana 80SSE) and the condenser from scratch, getting rid of "put the cable back were I found it" and instead followed the wiring diagrams (found a lot of mistakes, missing connections etc) and replacing all consumable parts while at it. The wiring diagram included with this new universal control board was very useful. I added a few connections that were not there, double checked everything, and it all again started up beautifully. These older units are very simple, at the end.... Even checked the furnace operation spending extra time in that 140deg++ attic.... So AC is back on, and missus is happy. Conclusion is that I am convinced that this is indeed a universal control, those complaining "it does not work" likely "just put the connections back where they were" instead of tracing the wires and making sure the right component is connected to the right terminal.... I also found the "2 wire to 4 wire" MOLEX adapter included needs that you also connect the 2 neutrals.... So you don't have to cut off the old plug, but still run 2 new wires in addition.
Robert
Houston, TX
12 months ago
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Product Q&A
20 Questions20 Questions
Q: Will this replace 50A55-438 ? (American Standard furnace)
Asked by Louie 14 years ago
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Verified Reply- PexSupply StaffYes, it will.
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Q: does this replace the 50A50-112 General 90 inter City Products? Does it come with all wiring needed for complete operation?
Asked by Craig 14 years ago
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Verified Reply- PexSupply StaffYes, 50A55-843 is the replacement for the obsolete 50A50-112. This part comes as pictured, but with six different wires.
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Q: Will this replace 50A50-241?
Asked by 14 years ago
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Verified Reply- PexSupply StaffYes, 50A55-843 is the manufacturer's recommended replacement for the obsolete 50A50-241.
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Q: Does the 50A55-843 replace a 50A50-473 (American Standard Furnace)? thanks
Asked by Nathji 15 years ago
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Verified Reply- PexSupply Staff50A55-843 is the manufacturer's recommended replacement for 50A50-473.
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Q: IS THE 50A55-843 a replacement for 50A50-206, also is it for heating and airconditioning.
Asked by 15 years ago
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Verified Reply- PexSupply StaffYes, part 50A55-843 is the manufacturer's recommended replacement for 50A50-206.
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Q: WILL THIS REPLACE 50A55-288-05 THANKS
Asked by TOPCAT 15 years ago
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Verified Reply- PexSupply Staff50A55-843 replaces 50A55-288. We cannot reference 50A55-288-05.
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- welder.will
it was the exact replacement for my WR 50A55-288. Dont know about the additional 05 on your model but i suspect this is your replacement model
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Q: Will this be a direct replacement for a 50A50-110
Asked by Frank 15 years ago
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Verified Reply- PexSupply StaffYes, 50A55-843 is the manufacturer's recommended replacement for 50A50-110.
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Q: Can 50a55-843 replace 50A50-112 or 50A50-142? It is for Air conditioner and heating.
Asked by Richard 15 years ago
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Verified Reply- PexSupply StaffYes, the manufacturer lists 50A55-843 as the replacement for both those items.
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Q: HOW DO YOU WIRE A 50A55-843 TO REPLACE A 50A55-571? IT'S A TRANE UNIT.
Asked by COIL 16 years ago
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Verified Reply- PexSupply StaffTo wire the new unit to replace the old one, you need to match up the terminals.
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Q: will this replace the 50A50-298 board?
Asked by 16 years ago
Add your answer
Verified Reply- PexSupply StaffThe 50A55-843 Universal Silicon Carbide Integrated Ignition module is a direct replacement for the 50A50-298.
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Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
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