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    daveroyk's Avatar
    daveroyk Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 7, 2008, 09:20 PM
    Heat doesn't kick on every once in a while
    I have a Nordyne E1EB-15HA heater/furnace. It runs great about 99 percent of the time. Every now and then, I have to switch from heat to off, and then off to heat to get it to kick on. If I switch the fan to 'vent', the fan starts up every time. What is the most likely cause? Is there a sticky relay? Sequencer? Or Limit Switch? What are the sequencers? Are the limit switches limiting the temperature of the coils? I believe the fan has to kick on, and then the coils heat up after the fan is running. Is that a true statement? If so, which relay controls starting up the fan. Any theory of ops or info would be appreciated.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 7, 2008, 09:28 PM
    Sequencer more than likely
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