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Thread: Help with lochinvar pool heater

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    Help with lochinvar pool heater

    I have a customer with a lochinvar ern152-a pool heater we are having issues with it turning on. I'm not familiar with the heater and hoping someone is on here. I have contacted lochinvar for help and have ran through troubleshooting steps with them and still isn't working. It's throwing a ignition failure code.
    Steps we have done:
    Cleaned burners
    Check inlet and outlet gas pressure
    Checked voltage to gas valve and it's good and opening correctly
    New board
    New igniter

    Thanks for the help
    Jacob Zaluski, Owner
    True Blue Pools LLC. Lexington, KY
    Service Center for Hayward Pool Products

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    Re: Help with lochinvar pool heater

    Jacob if this is an indoor heater make absolutely sure you have enough fresh air coming in. We had one customer that had one and they had two issues. One was lack of enough fresh air. The other was a gas supply line that was too small and it was also a flexible line that had ribs inside of it. Caused the heater to jump off the floor about 1 1/2" every time it would fire, then it would flame out after about 30 seconds then try to relight. It finally ruined itself.
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

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    Help with lochinvar pool heater

    It's a outdoor heater. So the fresh air isn't a issue I don't believe. When we contacted lochinvar they ran through the gas air mixture and they said it was correct. Gas line is correct size and is not the flex. It's getting the correct gas pressure at the valve and after it opens it's the correct pressure. It won't even flame at all. It try's but no flame.
    Jacob Zaluski, Owner
    True Blue Pools LLC. Lexington, KY
    Service Center for Hayward Pool Products

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    Re: Help with lochinvar pool heater

    Was this a new install and not working or an existing install and just developed a problem
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

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    Re: Help with lochinvar pool heater

    Just developed this problem.
    Jacob Zaluski, Owner
    True Blue Pools LLC. Lexington, KY
    Service Center for Hayward Pool Products

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    Re: Help with lochinvar pool heater

    What kind of igniter is it? Is it a spark igniter or hot surface? Do you get gas at the igniter when it is supposed to be igniting. To me it has to be one of those two things. It either is not getting electric at the igniter or it is not getting gas at the igniter
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

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    Re: Help with lochinvar pool heater

    Spark, and it's def getting electricity. And when I take the igniter out and see if it sparks it does. I smell gas outside the heater when it try's to light so I assume it's hitting the igniter as well. We cleaned the burners out with hot water.
    Jacob Zaluski, Owner
    True Blue Pools LLC. Lexington, KY
    Service Center for Hayward Pool Products

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    Re: Help with lochinvar pool heater

    If the sparker is sparking and you aren't getting a flame make sure that the gas supply tube from the valve to the spark is open. It almost sounds like that isn't happening.
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

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    Re: Help with lochinvar pool heater

    I'll check it out and get back to you. Thanks for the help
    Jacob Zaluski, Owner
    True Blue Pools LLC. Lexington, KY
    Service Center for Hayward Pool Products

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