[labac]

Do anybody know of any website that would guide me how read schematics
Need to know step by step gas furnaces,heatpump schematisc
I would like to know what does what and when something is suppose to be off or on
I would like to thank you ahead of time

Have a nice day

[KISS]

The so called schematics being published my manufacturer's these days even seasoned schematic readers have a hard time with. Take a schematic for a thermosat for example. You lucky to get one that even shows internally what is happening.

Idealy, there should be contacts listed for each of the terminals and a "theory pf operation". What you get is a list of terminal numbers and a short description like (C) Common
Rc (Hot Cool), Rh(Hot Heat) and nothing else.

You'll see books for house wiring which will be based on connect this wire here and that wire there and not a "schematic'. Even something as a light controlled from two different locations.

When was a schematic included with your ceiling fan.

Many years ago, schematics of radios were inside the case. The TV had a pocket where the schematic was located. Not any more.

I'm afraid, I think, your search will become somewhat futile.

Now servicing information ONLY to authorized dealers or not al all. You replace a sub-system only.