Question about Heating & Cooling
I believe that the Laars Lite 2 heaters are a millivolt system . There is a thermopile in the pilot assembly that produces about 500 millivolts DC. This is the power that the gas valve uses to turn on. These pool heaters are notorious for getting resistive connections that restrict the flow of electricity through the circuit. A connection that looses 1/4 volt is no big deal with 110v but in a millivolt system that is half of your power. Start by checking the output of the thermopile then go through the entire circuit and clean every connection with sandpaper. usually this will fix it but if not then you will need to isolate each individual component to find out what is not passing power.
Posted on Jul 29, 2008
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Posted on Jan 02, 2017
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