Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Pool heater will not ignite

  1. Back To Top    #1

    Pool heater will not ignite

    I have a Sta-rite pool heater that will not ignite. It has a fenwal ignition module with a red light that blinks 3 times when we try to start the heater. Manual says if the light blinks 3 times it indicates an "ignition lockout". All other led indicators (AGS, AFS, SFS, HLS, PS and THERMISTOR) are off. Gas is on and you can smell it for a few seconds as it trys to ignite, but then the fenwal light blinks 3 times. I tried resetting the breaker switch and still get the same result. I have the temp on the pad set to 95. Water temp is about 75. Heater unit is about 5 years old.

    Any ideas?
    Austin Texas
    25,000 gallon saltwater pool
    Aqualogic controls
    Sta-rite Heater SR400NA

  2. Back To Top    #2

    Join Date
    Mar 2007
    Coastalish 'down easter'

    Re: Pool heater will not ignite

    Welcome to TFP!!

    I've been having the same issue with a couple Pentair heaters of late (Pentair bought Sta-Rite and the heaters are ~ identical inside)

    How is the propane tank (under '20' the units will 'get balky' )

    It's been suggested to me that, even though the Hi-Limit sensor light isn't on, it could be a faulty Hi- Limit sensor (while this is possible, I'd be more likely to suspect a faulty thermal regulator)

    However, given that your unit doesn't fire at all (?) - I'd look into the gas getting to it first.

    I'm looking at my Sta- Rite heater manual as I type and KNOW these units well - give a little update or some more info and we'll help narrow down the problem or enable you to get that heater working
    Luv& Luk

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts