Hi, I've a problem with my ac/heating system. The temperature it's reading 65 degrees and I set it to 69 degrees , so it"ll turn on and begin to heat my home, and it's not doing it . What should I've to do to make it work?

Does the furnace continue to run or does it cycle off? Is the filter clean?Please provide as much information as you can and some one will respond with possible answers,Good luck, Mike

It doesn't cycle, the air filter is clean and if I turn on the fan manually it'll work

If the indoor fan does not come on automatically with the heat then you may have a bad fan switch, this switch brings on the fan when the temperature in the furnace reaches a predetermined set point (older furnaces) usually about 135 - 150 degrees you may want to leave the fan running manually until you can get a service person to look at it, good luck, Mike

Geesh, sounds like u havea and old t stat. does it have an anticipator settign in it. If so teh go to furnace put a jumper between r and w and clamp on an am meter and get the amps then set anticipator to that same setting .7 to .7... u have heat just not the amount ya want right... turn it up to 75 see if ya get 69 if y ado then i'm right