With Gibson GL1RA-090C-12B model uese produce some heat but now no heat at all Pilot does not get on I cleaned the Flame Sensor but no change & Weatherking 80PJ07EBR01 model not enogh hot air is coming now just heard that only clod air is coming on, I cleaned the Flame sensor too. Any help is greatly appreciate. Thanks in Advance.

Here is a link to your other posts.Are you running a business of fixing furnaces and using us as a sounding board so we can tell you how to repair them? You had problems with your one furnace before now you are having problems with to more different ones? Very strange indeed.

https://www.askmehelpdesk.com/heating-air-conditioning/luxaire-high-eficiency-gas-furnace-pilot-goes-off-300697.html

Thanks for the reply with question. No I am not running any business but I have 3 apartment for rent and that is why I am in trouble because who ever is coming is giving different opinions and asking about changing the unit which are only 2-3 years old. But if you don't want to give answer that's fine I just wanted to know the area of problem. Thanks anyway.
-Balliatic

Better start charging more for your rentals, so you can afford to have a tech come in and fix your problems. If you could give detailed problem. And had a knowledge of working with these type of things, then we may be able to help. Other than that, you are wasting not only our time, but your time also. I believe you will find rentals to be quite time and money consuming if you are not handy at keeping them up yourself.