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  1. T

    XE90 Gas Furnance, LED 4 blinks

    Hi, I'm new here and don't know how to post but Ive been reading this thread, Someone mentioned the Open High Limit Switch on a Trane XE 90, (LED blinking 4 times) I think thats whats wrong with my unit, where is it located? There are two wires going to a sensor on the fire chamber but no reset...
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