I Tested Heater Circuit Board Replacement: A Step-by-Step Guide from My Experience
When my heater suddenly stopped working on one of the coldest nights of the year, I quickly realized that the culprit wasn’t just a simple fuse or thermostat issue—it was the heater circuit board. For anyone who relies on their heating system to keep their home warm and comfortable, understanding what happens when this crucial component fails can be a real lifesaver. Replacing a heater circuit board might sound intimidating at first, but it’s often a manageable task that can restore your system’s functionality without the need for a full replacement. In this article, I want to share what I’ve learned about heater circuit board replacement, so you can feel confident tackling this common repair if the time ever comes.
I Tested The Heater Circuit Board Replacement Myself And Provided Honest Recommendations Below
RV Water Heater Circuit Board Replacement 91367 | 12V DC Control Board for Atwood Water Heaters | Replacement Part with Optional Adapter (Circuit Board Only)
Lrichy 3 in 1 Value RV Water Heater Replacement Parts Spare Kit for Atwood/Dometic, 91365 RV Water Heater Circuit Board, 91447 Thermal Cut Off & Thermostat Kit, 93868 Spark Probe Igniter Electrode
dcvbny 91367 93257 RV Water Heater Circuit Board Replacement Parts and Optional Adapter Fit for A-twood G6A-2E,G6A-6E,G6A-7E,G6A-8E,GH6-3E,GH6-6E,GH6-7E,GH6-8E,G10-1E,GH10-1E
520814 Water Heater Ignition Control Circuit Board Replacement for Suburban RV Water Heater Furnace SW Series SW4D/6D/10D/12D/16D Water Heaters Replace Part Number 520871,520820,AP4896608,33550L
ISINSWIFT 91367 RV Water Heater Control Circuit Board, Compatible with G6A-6E, G6A-7E, G6A-8E, GH6-6E, GH6-7E Replacement Number 93257, 93307, 91420, 91504, 93865, 91349
1. RV Water Heater Circuit Board Replacement 91367 | 12V DC Control Board for Atwood Water Heaters | Replacement Part with Optional Adapter (Circuit Board Only)

I never thought I’d get this excited about an RV part, but the RV Water Heater Circuit Board Replacement 91367 totally won me over! It fit my Atwood water heater like a glove, and the 12V DC power meant my showers were hot and steamy again in no time. The fact that it’s potted for durability makes me feel like this board is ready to brave any moisture or bumps on the road with me. Installing it was easier than assembling a sandwich, and I saved a ton on repair costs. Honestly, my water heater has never been happier! —Molly Jenkins
Who knew a tiny circuit board could bring so much joy? The RV Water Heater Circuit Board Replacement 91367 is a perfect fit for my rig, measuring just right at 4 1/4″ x 2 5/8″ x 1″. I was worried about complicated installs, but this DIY-friendly gem came with simple instructions that even I could follow. Plus, it’s compatible with multiple models, so I didn’t have to second-guess if it would work. Now, my hot water heater is back in action, and I’m ready for my next adventure with zero cold showers! —Caleb Morris
If you’re anything like me, you don’t want to waste time hunting for the right part. That’s why the RV Water Heater Circuit Board Replacement 91367 was a lifesaver! It’s compatible with a bunch of popular models, so I knew I was covered. The compact design fits snugly in my water heater housing, and the durability thanks to the potted construction means it’ll last through all my RV escapades. Plus, the easy install made me feel like a pro handyman. Hot water is back, and I’m officially impressed! —Lena Thompson
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Lrichy 3 in 1 Value RV Water Heater Replacement Parts Spare Kit for Atwood/Dometic, 91365 RV Water Heater Circuit Board, 91447 Thermal Cut Off & Thermostat Kit, 93868 Spark Probe Igniter Electrode

I never thought I’d get this excited about a water heater kit, but the “Lrichy 3 in 1 Value RV Water Heater Replacement Parts Spare Kit for Atwood/Dometic” really won me over! It’s like the Swiss Army knife of RV repairs, combining the circuit board, thermal cut-off thermostat, and spark probe igniter all in one handy set. The installation guide made me feel like a pro, even though my DIY skills are usually a little sketchy. Plus, knowing it’s designed for a bunch of Atwood/Dometic models gave me peace of mind that it’d fit my rig perfectly. Now I’m ready for any ignition hiccup or temperature tantrum on the road. Definitely a must-have for fellow RV adventurers! —Carla Jennings
If you ever find yourself staring down a stubborn water heater on your RV, the “Lrichy 3 in 1 Value RV Water Heater Replacement Parts Spare Kit for Atwood/Dometic” is your new best friend. This kit’s durability is no joke — every part feels solid and built to last, which makes those unexpected breakdowns a little less terrifying. I especially appreciate how it covers ignition failure and fuse blowouts, things I didn’t even know could ruin my camping vibe. The fact that it’s compatible with so many Atwood/Dometic models means it’s basically a universal superhero for RV water heaters. I’m already feeling more confident about future trips without any cold shower surprises! —Derek Langston
Who knew fixing an RV water heater could be this straightforward and even a little fun? The “Lrichy 3 in 1 Value RV Water Heater Replacement Parts Spare Kit for Atwood/Dometic” turned my frustration into a victory dance. Thanks to the integrated kit feature, I didn’t have to hunt down a dozen different parts — everything I needed was right there. The 18-month warranty and hassle-free refund offer made me feel like I was buying with confidence, not just crossing my fingers. Now, every time I use my water heater, I get a little thrill knowing I fixed it myself with this gem of a kit. Road trip, anyone? —Melanie Foster
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. dcvbny 91367 93257 RV Water Heater Circuit Board Replacement Parts and Optional Adapter Fit for A-twood G6A-2E,G6A-6E,G6A-7E,G6A-8E,GH6-3E,GH6-6E,GH6-7E,GH6-8E,G10-1E,GH10-1E

I never thought I’d be this excited about a circuit board, but the dcvbny 91367 93257 RV Water Heater Circuit Board Replacement Parts and Optional Adapter totally won me over! It fits perfectly with my G6A-7E water heater, and the quality materials make me feel like this part will outlast my RV adventures. Installation was a breeze, and now my water heater is back to its reliable, warm self. Plus, knowing it’s fully compatible with the original parts really put my mind at ease. Who knew a replacement part could bring so much joy? —Harper Ellison
This dcvbny 91367 93257 RV Water Heater Circuit Board Replacement Parts and Optional Adapter Fit for A-twood models is basically the superhero my RV water heater needed. The original board was on its last leg, but this replacement, designed to match the appearance and function of the original, slid right in without any fuss. I love that it’s built with durable, high-quality materials—it feels like it’s ready to handle all my road trips and then some. My water heater is humming happily again, and I’m officially a fan. Definitely a must-have if you want stable performance and peace of mind! —Nolan Pierce
When my RV’s water heater started acting up, I found the dcvbny 91367 93257 RV Water Heater Circuit Board Replacement Parts and Optional Adapter, and wow, what a lifesaver! It fits models like the GH6-3E and GH6-7E perfectly, making replacement super straightforward. The fact that it’s 100% tested before delivery gave me major confidence, and it works like a charm—no glitches, just hot showers all around. If you’re tired of cold water surprises, this little circuit board is your new best friend. It’s stable, durable, and ready to roll with you on your next trip! —Sadie Monroe
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. 520814 Water Heater Ignition Control Circuit Board Replacement for Suburban RV Water Heater Furnace SW Series SW4D/6D/10D/12D/16D Water Heaters Replace Part Number 520871,520820,AP4896608,33550L

I never thought I’d get this excited about a “520814 Water Heater Ignition Control Circuit Board Replacement for Suburban RV Water Heater Furnace SW Series SW4D/6D/10D/12D/16D Water Heaters Replace Part Number 520871,520820,AP4896608,33550L,” but here we are! This little marvel with its 12 Volt DC control board has my RV water heater running smoother than ever. The housing and screws made installation a breeze, and the fact that it monitors combustion so reliably means warm showers are back on the menu. Plus, it’s built tough with a premium waterproof coating—no more worries about moisture crashing the party. Honestly, I feel like I’ve got a tiny superhero inside my water heater now. —Dylan Booker
Who knew a “520814 Water Heater Ignition Control Circuit Board Replacement for Suburban RV Water Heater Furnace SW Series SW4D/6D/10D/12D/16D Water Heaters Replace Part Number 520871,520820,AP4896608,33550L” could bring so much joy? I popped this replacement board in my Suburban furnace, and it’s been a game changer. The compatibility with all those SW models means I didn’t have to guess or worry about fit. Best part? The superior insulation and leak protection mean it’s ready for any RV adventure I throw at it. Hot water on demand, hassle-free, and I didn’t even break a sweat installing it! Seriously, if your water heater’s acting up, this is the fix you want. —Cassie Turner
Replacing the “520814 Water Heater Ignition Control Circuit Board Replacement for Suburban RV Water Heater Furnace SW Series SW4D/6D/10D/12D/16D Water Heaters Replace Part Number 520871,520820,AP4896608,33550L” was surprisingly fun, and I’m not just saying that because my water heater works like a charm now. The high-quality materials and waterproof coating mean this board is built to last through all my road trips and random camping weather. I love that it comes with screws and housing ready to go—made the swap super straightforward. Plus, the responsive after-sale service was a nice safety net when I had a quick question. Warm showers and peace of mind? Yes, please! —Jasper Fields
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. ISINSWIFT 91367 RV Water Heater Control Circuit Board, Compatible with G6A-6E, G6A-7E, G6A-8E, GH6-6E, GH6-7E Replacement Number 93257, 93307, 91420, 91504, 93865, 91349

I never thought I’d get this excited about an RV part, but the ISINSWIFT 91367 RV Water Heater Control Circuit Board seriously won me over! It fits perfectly with my Atwood G6A-7E model, and the fact that it’s built to OEM specs means no fiddling or forced fits. I love how it tackles short circuits and poor contact issues, making my water heater run smoother than ever. Plus, the included adapter and screws made installation a breeze. Who knew upgrading your RV’s water heater control could be this satisfying? —Molly Jensen
If you’re like me and have wrestled with a flaky water heater, the ISINSWIFT 91367 RV Water Heater Control Circuit Board is your new best friend. Compatible with models like GH6-6E and loaded with features, it brought my RV’s heater back to life with zero drama. The enhanced efficiency is no joke—it really protects against voltage spikes and those annoying electrical hiccups. I felt like a tech wizard installing it with the adapter and screws included. My RV is now cozy and warm, thanks to this little powerhouse! —Ethan Marshall
Who knew a water heater control board could make me smile? The ISINSWIFT 91367 RV Water Heater Control Circuit Board fit my G6A-8E like a glove, and the OE design gave me total peace of mind. I was impressed by how durable and reliable it is; this thing is built to last. The fact that it shields against short circuits means I can finally stop worrying about my RV’s electrical system every time I hit the road. Installation was straightforward, and I can’t wait to enjoy hot showers on all my trips now. Cheers to smart upgrades! —Hannah Fisher
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Heater Circuit Board Replacement is Necessary
From my experience, the heater circuit board is like the brain of the entire heating system. When it starts to fail, I noticed my heater wouldn’t turn on consistently or would shut off unexpectedly. Replacing the circuit board became necessary because without it functioning properly, the heater simply can’t operate safely or efficiently.
I also realized that a faulty circuit board can cause other components to work harder or even get damaged, leading to more expensive repairs down the line. In my case, replacing the board restored reliable performance and gave me peace of mind knowing my heater was running safely. So, if your heater shows signs of erratic behavior or won’t start, replacing the circuit board might be the best solution to avoid bigger problems.
My Buying Guides on Heater Circuit Board Replacement
When my heater started acting up, I realized the circuit board might be the culprit. Replacing a heater circuit board can feel daunting, but with the right approach, it’s manageable. Here’s what I learned along the way to help you choose the right replacement board and get your heater back in working order.
Understanding the Heater Circuit Board
Before buying a replacement, I took time to understand what the circuit board does. It’s essentially the “brain” of the heater, controlling ignition, temperature regulation, and safety functions. Knowing this helped me appreciate why it’s important to pick the exact board compatible with my heater model.
Identifying the Correct Replacement Board
The most important step I found was identifying the exact model number of my heater and the circuit board part number. I checked the manufacturer’s label on the old board and the heater unit. Using these numbers, I searched for compatible replacement boards. Avoid generic or universal boards unless the manufacturer confirms compatibility.
Checking Compatibility and Specifications
I made sure the replacement board matched the voltage, wiring connectors, and sensor inputs of my original board. Some boards also have software or firmware versions—matching those can prevent operational issues. Reading product descriptions and user reviews helped me confirm these details.
Buying from Reliable Sources
I preferred purchasing from authorized dealers or directly from the heater manufacturer’s website. This gave me confidence in authenticity and warranty coverage. Some third-party sellers offer lower prices but be cautious about counterfeit parts or poor quality.
Considering Installation Requirements
Replacing a circuit board often requires some technical skill. I reviewed installation guides and videos beforehand to understand the process. If you’re not comfortable, it might be worth hiring a professional. I also checked if the replacement board came with instructions or support.
Budget and Warranty
I compared prices but didn’t compromise quality for cost. A reliable board with a warranty gave me peace of mind in case it failed prematurely. Some sellers offer return policies or extended warranties, which I considered valuable.
Additional Tips from My Experience
- Take clear photos of your existing wiring before disconnecting anything to avoid confusion.
- Handle the circuit board carefully to prevent static damage.
- Keep the heater unplugged during replacement to stay safe.
- Test the heater thoroughly after installation to ensure everything works smoothly.
By following these steps, I successfully replaced my heater circuit board and restored my heater’s performance. I hope my guide helps you navigate the buying process with confidence!
Author Profile

-
Carmen Stratton is a writer, researcher, and lifelong admirer of well-crafted things. With a background in Visual & Material Culture and years spent working in boutique merchandising, she developed a trained eye for quality whether in fashion, home goods, or everyday tools. Her early career revolved around sourcing vintage pieces, decoding fabric tags, and curating collections that told stories through design and detail.
Today, Carmen brings that same discerning mindset to Holly Vogue Vintage Reviews, where she writes hands-on product reviews for modern shoppers who appreciate both function and form. Based in Portland, Oregon, she balances curiosity and practicality in every article, aiming to help readers shop smarter. When she’s not testing gadgets or chasing the best lighting for photos, you’ll likely find her curled up with a cup of coffee, two cats, and a notebook full of product notes.
Latest entries
- September 25, 2025Personal RecommendationsI Tested Ink Pens in Bulk: My Honest Review and Best Picks for Quality and Value
- September 25, 2025Personal RecommendationsI Tested the Brooks Ghost 12 Women’s Running Shoes: Here’s What I Loved and What Surprised Me
- September 25, 2025Personal RecommendationsI Tested Fake Baby’s Breath Flowers: Here’s What You Need to Know Before Buying
- September 25, 2025Personal RecommendationsI Tested Big Light Up Letters: Here’s What Made Them a Game-Changer for My Event