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

    Sep 24, 2018, 06:00 AM
    Ultra sx 80 hit by lighting
    Dead furnace. Replaced main board which was burnt in several places. Still nothing. What to check next? Nothing else has visible signs of damage.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Sep 24, 2018, 03:33 PM
    Honeywell Smart Valve? Power to the unit? What does LED on control board show. Check the thermostat.
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