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Open End Switch indication from LED

BRoe Member Posts: 1
I have a Janitrol Heater on the house I just bought and its been going out for short periods of time.  When I checked the unit the LED is blinking twice for the Open End Switch.  What is that and how do I go about fixing it.  Thanks!


  • Tim McElwain
    Tim McElwain Member Posts: 4,480
    I assume this is a furnace

    and possibly the LED indication is related to the switch on the air proving switch affected by your combustion air blower. Is this a condensing furnace? Do you have a condensate pump?

    If you have a pressure switch make sure there is no moisture in the tubing from the pressure switch and that it is not kinked.

    If you are not comfortable with fooling with all of this call a professional to take a look at it.
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