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Fleck 5600SXT Replacement Circuit Board
When Your SXT Head Goes Dark, This Is Almost Always Why. The Fleck 5600SXT Replacement Circuit Board — genuine Pentair Fleck part — replaces the internal timer/control board that's usually the real culprit behind a dead display or unresponsive valve.
FACTORY-DIRECT SAVINGS
In stock. Shipped within 1–3 business days.
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DESCRIPTION
New brain for your Fleck 5600SXT.
If your softener’s screen is dead or it won’t regenerate, the circuit board is a likely culprit. This is the genuine Pentair Fleck replacement circuit board (PN BR43346-EO) for the Fleck 5600SXT control valve. It’s the exact part, not a knockoff.
- Genuine Pentair Fleck part
- Made for the 5600SXT control valve
- 100% no-risk money-back guarantee
Not sure it’s the board? Call 1-866-278-4130 and we’ll help you diagnose it.
HOW TO USE
Swap the board. Reset the settings.
- Unplug the softener and put it in bypass.
- Remove the control valve cover.
- Disconnect the old circuit board and remove it.
- Install the new board and reconnect.
- Plug in and reprogram your settings.
Check your power supply first. A dead screen isn’t always the board.
HOW DOES IT WORK
It runs the show.
The circuit board is your softener’s control center. It keeps time, runs the display and tells the valve when to regenerate. When it fails, the screen can go dark or regeneration can stop working.
A new board brings your softener back to normal operation.
Industry Leadership Certifications
3 Easy Steps To Complete Transformation
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Place your order
Secure your product in minutes with our easy and secure checkout.
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Get Fast Shipping
We'll pack and ship your order within 1–3 business days, with tracking sent straight to your inbox.
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Enjoy Soft, Clean Water
Experience spa-like water in just moments after installation without worry of hardness or contaminants.
Set it and forget it!
Replacement Circuit Board For Fleck 5600SXT
Genuine Pentair Fleck Part
PN BR43346-EO
What Real Customers Say
"Right part, right price, on time delivery. Fixed our problem. Exactly what we needed." — Daniel H.
⚠ Note — this next entry is a live, unresolved support request, not a review:
"Actually, unit looks okay but still having issues with my water softener. Screen will still not come on. Checked for power, is it possible unit defective, need to talk to a tech and figure this out, maybe they can walk me through and see what's up. Thank you." — Steve D.
This is genuinely a customer asking for help, not feedback on the product — it looks like it landed in the review widget rather than a support ticket. Worth flagging to your team directly: if this customer hasn't been followed up with, that's a real gap between a public review posting and an actual resolution.
Replacement Circuit Board For The Fleck 5600SXT Control Valve
Genuine Pentair Fleck Part
PN BR43346-EO
Authorized. Legit. No Knockoffs.
Genuine Fleck/Pentair parts. Authorized dealer status. No gray-market nonsense — just the real thing, every time.
Real Experts That You Can Count On
Steer clear of the guessing game. You're investing your hard-earned money into a solution to provide quality water for your family. We cut through the clutter for you to make the right decisions.
Unlike the big box stores...
our team of experts recommends the best solutions available in the entire marketplace. Our water treatment consultants help you before AND after your purchase. Our customers are like family.
Real Experts. Real Value.
Our mission is to empower people to live healthier, happier lives by providing quality water solutions for their families and businesses. We've delivered best-in-class water treatment solutions and customer service across North America since 1990.
As a family-owned business, our priority is our customers' satisfaction: improved taste, eliminated toxins, extended appliance and fixture life, gentler treatment of clothes/hair/skin, and no more costly plumbing corrosion or staining.
We carry the best brands in the industry in value-added packages, making installation and operation simple and efficient.
Intelligent Assessment
Everyone's water treatment needs are different. With our innovative assessment technology, you can take the guesswork out of your water treatment options.
Leverage our Water Intelligence Engine™ to get the best expert recommendations for your unique water-quality needs. We'll also help you discover what's really in your local drinking water and how the top brands stack up.
- Help you confidently and properly size a water softener solution to meet your space's specific needs
- Provide expert recommendations of various water treatment solutions
- Thoroughly educate you on your options
- Our newly updated Comparison Chart compares all major brands
- Our Water Analysis Report grades your local water quality and details any water contaminant findings
Unmatched Expertise
At Quality Water Treatment, we treat our customers like family, and we know the products inside and out.
Don't waste your time wandering around a big box store hoping to find a true expert.
Shop with confidence here instead, and we'll get you the correct equipment for your specific needs, delivered right to your door.
Decades Of Experience
After over 30 years in business, we know water treatment like no one else! And we want you to leverage our expertise to get the best solutions for your needs and goals.
Our team of highly trained water treatment consultants is here to answer all of your questions. We compare all major brands and show you all your options with no pushy sales tactics.
Everything you need to make the right decision is at your fingertips. You can also connect with us via live chat, text, phone, and email.
Delivered To Your Door With Ease
All orders ship within 1–3 business days. With streamlined processes throughout our organization, we rapidly fulfill orders right after they're placed and ship them to your door — fast!
No waiting. No hassle. We're 100% transparent about the status of your order at each step of the process. You'll get automatic email alerts and can check your order status at any time.
Affordable Ways To Pay
You deserve quality, clean, soft water starting now.
Zip gets you 4 interest-free payments, or pay a small amount each month with Affirm.
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5.0 / 5
I just wanted to say thank you for your excellent products and service over the past 12 years.
Daniel R.Verified CustomerTexas
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5.0 / 5
After we installed the Softpro Elite I noticed a significant difference in the house water quality.
Julie M.Verified CustomerFlorida
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5.0 / 5
I decided to go with the Softpro water softener over Fleck. Very impressed and satisfied with their products and customer service!
Roy P.Verified CustomerCalifornia
