Question about Hayward H-series Electronic Gas Pool Heater H400

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I'm trying to start-up a Hayward H400 natural gas heater for my pool. It was brand new last season and worked perfectly. It keeps firing up for a little while (maybe 10 seconds on average) and then shuts off and re-tries. After that, I get an "IF" failure light. I'm thinking maybe my gas line needs to be purged? Any help would be appreciated since Blue Haven pools support really sucks. Thanks.

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If means ignition failure check that gas is on, check for fauilty igniter wiring or connections, inspect gas valve wiring measure voltage across gas valve during trial to ignition if 24 volt replace gas valve if no 24 volt replace control module

Posted on May 19, 2009

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Posted on Jan 02, 2017

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http://waterheatertimer.org/pdf/Hayward-error-codes.pdf

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The last I checked a kit was available for this conversion.
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Gas valve.
Gas valves will often stick in the closed position especially after sitting dormant for a period of time.
if you want the posibility of one more season, You can try to tap on the bottom ans side of the valve with handle of a screw driver while it tries to ignite. Note: This is a technician trick, most manufacturers will not approve in fear you are so lacking in common sense you will go out and beat the valve with a hammer, then sue them when it cracks the metal valve leaking gas while you smoke a cigar ultimately relocating your heater on top of the neighbors Buick..so please don't do that. BUT, If the valve opens and heater fires with a few love taps try it a couple more times to see if it will work on its own. It will likely continue to work if so.
You will likely need that gas valve next year anyway.

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