Hello! I have an electric pump heating system that heats the upstairs of our home. I've always noticed that when the heat kicks on it has always blown out a bit cool for first ten or so minutes but the room is always warm so I never worried about it. Well, turned the heat on earlier this week and noticed yesterday the EM Light is in on - steady glow, no flashing - and a steady flow of cold air has been coming out of the vents. I've been to some sites and have read some conflicting suggestions. Do I need to call a service tech or is this a matter of turning off something? I've turned the the thermostat switch to "off" because I am certainly not getting any heat and can't see running the unit to have my room colder. Any suggestions are greatly appreciated & thank you!!