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Thread: Pentair minimax nt heater not working.

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    Tmkowalski's Avatar
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    Unhappy Pentair minimax nt heater not working.

    Haven't used my tub for quite a while and went to fire it up. On the panel it reads 107 and will
    not fire up. I checked all settings and connections, reset etc. Nothing. Any thoughts?

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    Re: Pentair minimax nt heater not working.

    Sounds like the thermistor, temp sensor, is bad. The heater thinks the water temp is 107 so it is not going to fire up.
    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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    Tmkowalski's Avatar
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    Re: Pentair minimax nt heater not working.

    Is this something easy to replace? I have installed the transformer and now I get Hi reading and heater does not fire up at all. Cleaned filter etc, and can hear and feel flow through heater and it has good flow at tub.

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    Re: Pentair minimax nt heater not working.

    See post #2
    Factory Warranty Station for:
    Jandy/Zodiac, Pentair, Sta-Rite, Raypak, Polaris,
    and Paramount pool cleaning systems.

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    Tmkowalski's Avatar
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    Re: Pentair minimax nt heater not working.

    Replaced thermastor. Very easy. Tub worked great for about a week and now it heats up a bit and stops and I get E02 error. At minimax I just press spa again and after a minute it fires up. I may have to do this 2-3 times to get tub to 101. Any thoughts? Thanks.

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    Re: Pentair minimax nt heater not working.

    E02 is usually the high temp limit.
    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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    Tmkowalski's Avatar
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    Re: Pentair minimax nt heater not working.

    Quote Originally Posted by ps0303 View Post
    E02 is usually the high temp limit.
    That's why I replaced thermistor.

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    Re: Pentair minimax nt heater not working.

    Quote Originally Posted by Tmkowalski View Post
    That's why I replaced thermistor.
    Two different parts. You have the thermistor, that reads the water temp and then a high temp limit. Two different parts.
    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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    Tmkowalski's Avatar
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    Re: Pentair minimax nt heater not working.

    Sorry, didn't know. Bought one and putting it in it broke. These switches are very fragile. Got another one coming. Any tricks to installing it?

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    Re: Pentair minimax nt heater not working.

    How did you break it? You just have to be careful installing it. I haven't broken one putting it in but taking the old one out is a different story.
    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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