Carrier Gas Furnace runs fine randomly stops blowing LEDs flash

your furnace heating element is going bad replace element.

It sounds like it is going into overheat mode. Check the overheat sensor, make sure the flue is clean, make sure any filters are clean, also check the gas passage inthe heat exchanger, if there is a blockage from soot the system will overheat

you may need to replace the thermostat or the thermostat batteries if applicable. To replace the thermostat follow the instructions on the new thermostat. Make sure to set the thermostat to the gas setting(see instructions) this should cure your problem. Good Luck on the repairs

Dave

Could be a defective thermostat in the plenum.
When a gas furnace shuts down the fan(blower) will run until the plenum cools to the safe range. Usually 1 and 1/2 minutes.
Intermittent operation is a defective thermostat or relay.

Check the filter and/or air flow in general. It may be over heating.

have the thermocoupler checked

Make sure a back draft in the flue is not happening. Wind can blow it out until the flue heats up. The flame sensor may not be close enough to the burner flame. It may be weak and need to be replaced or if its an optical one it may be dirty and not see the flame very well. Its not wasting much gas but it puts extra wear and tear on the gas controls, is noisy, and, as you said, blows cold drafty air. A gas control system that has issues of any kind is not real safe. It needs to get fixed.

having a problem with a weather maker 8000. It will not come on at all unless I shut down the switch on the side of the furnace. filters is clean. it will start to light then stop

Your hot surface igniter may be bad. It may be cracked which would prevent it from starting the burner flame.

Most furnaces have a photo cell if it gets dirty the photo cell does not see a flame so it trips the reset button on flame failure.