Hayward Pool Heater H400FDN Disassembly Heat Exchanger Repair
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- Опубликовано: 9 фев 2025
- Hayward Heater Model H400FDN
Disassemble and Re-Assemble
Hayward H-Series H400FD Heat Exchanger Assembly
Repair Heat Exchanger (Model FDXLHXA1400)
400,000 BTU heater
Burst copper pipes
Houston Freeze, Feb-2021
This was helpful! Just bought a home in Baton Rouge with a Hayward unit…it’s leaking buckets of chlorinated water. Husband’s first impulse was to ‘just buy a new one’. Ha! No. Taking this thing apart is daunting, but videos like this really help. And thanks for showing what worked as well as what didn’t!
So glad to hear it was useful and helpful and hopefully an economic assistant...
Great video. I have an older model that has a rear head gasket with an o-ring that is leaking. I intend to repair it as a replacement heat exchanger is $1500. It’s nice to know that a radiator repair shop can fix any leaks. I’ve got a lot of rusted head gasket nuts to remove hopefully without snapping anything! Great original content! This is why RUclips is first place I search for repairs.
I love that this is helping others! Thanks for stopping to let me know. Use lots of Liquid Wrench for the nuts. Good luck.
Excellent video. Mine froze in January, and your teardown showed me how to fix mine.
Happy to have helped. Always love do it yourself-ers!
Great video man I looks like I have my work cut out for me
You got this. Easy(ier) with a good reference video!
Absolutely! I have a weird clicking noise coming from the heater while it’s running like there are rocks in there
Could not have replaced the heat exchanger wo your very helpful video: thank you! Label ("everything") and cup storage tips were key.
Love to hear when time spent was time well spent and helpful to someone else (and cheaper! ). Go RUclips!!
Congratulations!
I had the same issues using that jb weld. Wound up ordering a new header assembly.
I switched to using an Auto radiator company to weld the leaks. And that did the trick!
Great job! I have the same heater with a leak at the header assembly connecting to the outlet pipe. replacing the O-ring didn't work so I.m going to replace the header assembly and cross my fingers..
If you have not purchased the header, here's one option which looks to be the cheapest:
azpoolshop.com/product/hayward-h-series-low-nox-heater-header-assembly-fdxlfha1930/?gad_source=1&gclid=CjwKCAjwv-2pBhB-EiwAtsQZFBNN4mIR1Gyaj4Ka137CJ0FMSTz4OpR82c8qtryZqOO_q7dB1zl2qhoC3KoQAvD_BwE
Glad to hear this video helped you out!
No time to read all comments, but I read a few . . . so this was your own heater you fixed or was this for a customer? Either way, I appreciate the video. I'm headed out tomorrow to replace a cracked Hayward FD Heater Head (you called it a manifold) and after watching your tutorial, I will have less guess work. I appreciate the time you spent making the video and then sharing it with the world. I respect the repair work, especially if this is your own heater. If this was for a customer, I'd love to know what you charged for all your work? Well done, sir.
Thanks for sharing your appreciation. I'm strictly a do it yourself-er. This is my heater unit. I billed myself at $100/hr (kidding). For Houston weather, I refused to purchase a replacement. The header/ manifold replacement was unexpected, but became necessary with gaskets/o-rings, etc. helping ensure a good install.Had I thought of the auto-radiator welding option first, it would have been a swifter overall job. It doesn't operate at super high pressure, but the weld was the best repair for the copper breaks from the freeze. Thanks again. Good luck on your job tomorrow!
What kind of solder did they do??
Pretty sure it was a brass solder...
I Don't think you have to take any of those wires off of the manifold.
Comments welcome... helpful? It's my first...
Mine also broke during Snowmageddon, about to start this repair. Is your soldering still holding? Mine was leaking metals into the pool, which turned our hair green. Did that happen to you too?
Either way - Thank you very much! Most helpful!
@@jberlin8866 Not at all, Sir. Nothing like that happened. I got a really nice "radiator" soldering job done by an auto radiator shop (S. Main Radiator Shop, 14301 S Main St, Houston, TX 77035). If was like a brass material, $75 repair. No metal coming off that repair!
Let me know how it goes.
I have this pool heater and it is smelling like gas every time I turn it on. The wall of my house has black soot on it. Anyone have these issues?
I have not experienced these issues (sounds like a jet plane when starting), but I don't smell gas - that would scare me. And, the exhaust is always "clean", have never had any smoke or soot build-up on the wall either (although my unit does not exhaust out towards the house wall). Sounds like you have some issues I would be concerned about, and perhaps some safety issue to contend with too. The gas should run / burn very clean...
To me it seems like it just be easier to buy a new one and put it in instead of go through all that I know it cost more but it be a lot less headache definitely after watching the whole video I would’ve bought a new unit instead of done all that crap
😆
Thanks for watching and commenting. I didn't have a spare $3,500 for a new heater. Just the broken exchanger unit replacement was nearly $1,000. That required all the disassembly/ reassembly. So, when flush was "spare" cash, go for the easy route. But if you are not, that's why we have do-it-yourself'ers! 😉