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

    Jan 2, 2010, 07:27 PM
    How to bypass the limit switch on a furnace
    I have an outside wood furnace the blower on the inside furnace won't run I have the blower hooked up to a extension cord teporarely so the baby's don't freze can I posibly reset the limit switch or do I need to replace the inside furnace is old and I don't know about matcing parts I'm only usining that furnce shell to hold radiator for te boiler and the blower and thermostat until the blower wouldn't fire so maybe I could bypass it I need to figure uot how to cobbel it I'm flat broke
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Jan 2, 2010, 07:40 PM
    Just disconnect the wires from the furnace to the blower and wire those to a cord and plug in. This eliminates the furnace from the circuit and just lets the blower run all the time. Actually if you are knowledgeable about wiring you could use the voltage supply going to the furnace to power the blower OR is you have a fan and limit control with a button or slide switch you can activate the blower with that switch and it will run all the time also.
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