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Thread: h400fdp heater, wont start when commanded by prologic

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    h400fdp heater, wont start when commanded by prologic

    So, this heater starts quickly when I use the manual heater mode. I set it to bypass operation to allow my pro logic to set the temp on my display and heater light illuminates (as normal), however, heater wont start. NOTE - this method did work just two weeks ago. I do not understand how this can be intermittent. Thoughts or suggestions?
    13K Gal/ IG/ plaster-pebble aggregate/ Cartridge Filter C17502/ 2 speed 2.0HP
    Pool installed 8/2012/ SPA w/spillover/ SWG Hayward Turbo cell T-9/ Kreepy Krawly cleaner/ ORLANDO, FL
    TF-100 Test Kit

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    Re: h400fdp heater, wont start when commanded by prologic

    Did you set the heaters temp on the front of the unit to 104? The automation unit does not set the temp on the heater. You set the temp to the 104 and then if you have the automation set up correctly, it will turn the unit on and off and it will monitor the temp to what you set it at on the automation system.
    Paul
    http://www.gastekservices.com A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

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    Re: h400fdp heater, wont start when commanded by prologic

    Well with my unit i can set the temp i want the water to increase to under settings, normally it will start the heater and once water temp rises to set temp, it will keep the temp at what ever the setting is. Does this jive with your understanding?
    13K Gal/ IG/ plaster-pebble aggregate/ Cartridge Filter C17502/ 2 speed 2.0HP
    Pool installed 8/2012/ SPA w/spillover/ SWG Hayward Turbo cell T-9/ Kreepy Krawly cleaner/ ORLANDO, FL
    TF-100 Test Kit

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    Re: h400fdp heater, wont start when commanded by prologic

    Yes I understand that you can set the temp under settings on your automation system. But you must set the temp on the heaters front panel to the highest it can go. So, have you set the heaters temp on the heater to be the highest it can go, usually 104?
    Paul
    http://www.gastekservices.com A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

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