I have an XV90 upflow furnace that is only blowing cold air, the fan seems to be running continuously and is flashing two slow green lights and two quick red lights. What does the flashing light code mean and how do I reset this unit so it will respond to the thermostat?

Asked by Gary on 04/11/2014 0  Answer

ManualsOnline posted an answer 10 years, 7 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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