How-To Operate a Hayward H-Series Pool Heater

A quick, simple, and to the point video on how to operate your Hayward H-Series Pool Heater both in natural gas or propane format. This covers all models from the 150k BTU unit up to the 400k BTU unit.

[simonedoesitbetter]

It displays an orange exclamation mark and the flame won't light green, why?

[cherylmacedo]

Thank you for this simple, easy to follow tutorial !!

[jeanwillis]

Thanks! Mine is brand new, I’m a widow and this helps big time!

[daburg]

Great video, I just had same unit you

[hvlineman]

Gas guy just hooked up my gas end. Getting ready to fire this thing up I have the h350fd model.
This video is very helpful figured I’d watch before I fired mine up. Thank you

[jaywalkerincognito]

I am seeing "EC" on the display. Every couple of minutes it shows 1.88 for a split second and switches back to EC.

I have a hatward FDN400.

Any idea what the issue is? I couldn't find it in the manual.


Appreciate the help

[andrewp.]

Thanks for the video. When I want to turn it off it won’t. The power light and pool light are both illuminated and heater still runs.

[allwortht]

I have the same what heater, mine goes into LO mode, I’ve even went so far as remove the filter entirely. When I switch it on, it won’t lite itself unless I put a torch in site glass, I have a new glow thingy in it. Lol. Name is gone, it won’t lite. But with the torch it does, will only run for about 30 sec then quits. Reads LO. Any ideas?

[studiobwithtv]

I have this exact heater and I'm trying to winterize it. Are there any more drain plugs besides the one on the header? Do I need to disconnect the water pressure switch like my previous heater?

[karenbononi]

Thanks !! Had to shut my system down and forgot which button was which! 😂

[larryp]

Could you please explain what needs to be done to prepare for winter?

[donkeywhistler]

My pool is cool due to shading/screen cover in the back yard. I would like to raise it about ten degrees for a month or two during the summer. The pool usually runs for around 8 hours a day. I wonder if I need to run it longer or at night in order to heat or just 8 hours a day like usual. Not sure if heating and then natural cooling of water and then reheating is less efficient or a constant temperature is. I understand that running the pool pump for long hours will be more expensive. Thanks!

[DanielMuvdi]

Why it doesn’t allow to get the temp of the water hotter than that!

[DrDwizz]

Mine gives error code "SB" which the manual says "keypad stuck button error" but power cycling and such isn't fixing anything. Ideas?

[Lindanorris-jfqt]

When you turn heater off do you close your gas and change water back to other return? I guess what I’m asking if it running Thur heater but off does that wear it out?

[tdwtx]

Thanks for this video! Question: My Hayward H Series heater runs perfectly except for a LO code that comes on whenever the pump isn't running, even with the heater in standby. I always turn the heater off before turning off the pump, and as long as the pump runs, there's no LO code. As soon as I turn off the pump, the LO code appears. When I start the pump again, the LO code is cleared. Over and over again. Is this normal?

Thanks for your help!

[thisdude]

So you have to physically turn on the heater everyday? Or can it just be in standby until the pool pump kicks on and then it automatically comes on

[Kevin-kzqo]

Thank you for this. We have a Hayward OmniLogic Panel controlling our Heater. We can't set the temperature above 84º F even thought the Heater Itself has a lockout set at 90º F. Any Suggestions?

[breadfan]

can you leav the gas switch to on when not heating?

[carlblankschaen]

I currently have my Haward Pump set to pump on high (80%) for 4 hours during the middle of the day to avoid making noise when the neighbors are home. For the remainder of the day, it operates on 40% to be quiet, but still keep the pool circulating water. Am I able to leave the Hayward Heater on pool mode all the time during my schedule?