How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Billy Your Own Question
Billy, Technician
Category: Pool and Spa
Satisfied Customers: 22541
Experience:  Licensed in Hydronics and Boilers
Type Your Pool and Spa Question Here...
Billy is online now
A new question is answered every 9 seconds

I am getting a SF error on my Hayward heater I change both

Customer Question

I am getting a SF error on my Hayward heater I change both hi limit sensors. still the error. I by passed the water pressure switch. still SF error Ant ideas
Submitted: 2 years ago.
Category: Pool and Spa
Expert:  Billy replied 1 year ago.
usually it is sensor /thermistor not sending correct info to board.
But there are times the correct info is there but the board does not recognize it.
If you changed the sensors then you have a bad board