Sorry this is not a DIY site.

Please call a contractor high voltage can kill!

 

Sounds like it's not wired right, or you didn't shut off the correct disconnect when changing the thermostat

 

We have an electrician helping us. We confirmed with a multimeter we have shut off all the power to the unit. I just need a manual so we can replace the fuses. Obviously if that's not the issue we will call an hvac company.

 

It's likely didn't shut off right disconnect when changing it which leads to the blown fuse issue even though it worked fine for a couple of weeks. We bought a second new honeywell non-programmable and it still isn't responding to heat, ac, or fan. Everything is definitely disconnected now.

 

Unless you think a third t-stat will magically work, i would call a pro.

 

The fan was running but no heat........Figured from our research this is a blown fuse problem since we may have had wires touch each other at the honeywell unit when double checking they were r-r, o-o, etc.

If it had a blown fuse fan would not be running.

 

thanks we are. electrician said looks like the transformer is bad.

 

thanks further down in the explanation i mentioned the fan stopped working, all of it stopped working. Our electrician said looks like a the transformer smoked so we're calling the hvac pro. Also we found out our furnace doesn't have a fuse/circuit board in the actual unit so alas the manual wouldn't help us find it since it doesn't come on that model.

 

your unit probably does not have a fuse to protect the transformer.

 

The old trans formers had a fuse under the paper wrapping on the windings. Cut out and twist wires together to get one more try.

 

The old trans formers had a fuse under the paper wrapping on the windings.

Really?

 

They were either a glass fuse or a cardboard type fuse. You can feel them under the paper wrapping with your fingers. Carrier also used a trans with a fused and a unfused tap on the secondary side. Those come in handy at times.