I own a Bryant Plus 80 gas furnace. The fan will run if I set the thermostat to "Fan On" instead of "Fan Auto". But the burners will not ignite. It was working fine until I got my gas shut off. When I got my gas returned on the furnace won't ignite anymore.

There should be a valve near the furnace. Make sure it is on. Have someone turn the thermostat to a high temperature while you are right in front of the furnace and see if you can hear/smell gas while it tries to start.

Good luck,
WallyH

There should be a valve near the furnace. Make sure it is on. Have someone turn the thermostat to a high temperature while you are right in front of the furnace and see if you can hear/smell gas while it tries to start.

Good luck,
WallyH

I try that and there is no gas.. I have gas to the boiler n my gas stove

I try that and there is no gas.. I have gas to the boiler n my gas stove..
I also want to know if the polite could be dead or needs to reset.. In this case

If the furnace has a pilot which stays lit all the time, the pilot will need to be re-lit before you are going to get any heat.

It is a automatic polite.. That means I don't need to light the polite.. When I turn on heat n auto nothing kicks on.. But when I turn on heat n fan.. I hear is just the fan blowing, no flames

Is there a small exhaust blower & if so does it run? Does the furnace light via a spark ignited pilot or is there normally a glow plug which lights the burners?

Where can I find the exhaust blower. In the past when ever I turn on heat plus auto I hear a click sound then everything's works but now I don't hear anything

The exhaust blower, more properly called venter or draft inducer, connects to the exhaust pipe.

Ok.. The exhaust blower doesn't make a sound..

Make sure the door to the blower compartment is properly installed. If it is, check on the control board for a small automotive type fuse (usually either 3 or 5 amp).

Everything is in place and the fuse is properly installed. The fuse is not blown. The LED light is just at solid. No blinking light from the LED

Install a jumper wire between terminals R & W. You will probably have to hold the blower door switch in but this will by pass the thermostat & it's wiring. If the furnace now runs, you have a problem either with the stat or the wiring between the stat & furnace.

Where can I find the terminals R & W.
Wire..

Follow the thermostat wires where they go into the furnace.