Posted on January 26, 2010.
I changed my filters in my air conditioner Heil and now it has stopped working? I checked the breakers circit and if there was power and there is the usual fan turning on. It worked very well this morning. I did not notice that he himself was reset when I changed the filters, then I went to turn it on. nothing
It could also be something simple like a safety switch inside your oven.
Generally, you must remove a sign some sort of get inside the furnace to replace a filter. Once you remove this panel, the safety switch prevents the POP and oven come on the entire panel is off. (A bit like the light that comes in your refrigerator when you open the door, but opposite).
Make sure the access panel will be put back on and bolted securely / properly.
Hopefully that will fix it.
If not, it seems that your oven may have a serious problem requiring repair by an HVAC engineer.
See if you can find the manual for your system and check the troubleshooting guide.
Unfortunately, it seems that you have to call a service center HVAC. Sorry