Look at the panel and it will tell you what the flash code mean .
I THINK it mean roll out switch but every make is different with their code .
If it is the roll out switch then you may have a bad heat exchanger
SOURCE: No heat, trouble shooting light has continious flash.
There is a vacuum sensor on most units tied from the exhaust gas fan to the sensor. Does the unit try to start? If the unit's exhaust fails to pull the switch it will turn off after about 30-45 sec after starting. "IT" thinks it's not exhausting and stops to keep from overheating. Do you have this exhaust fan and rubber hose to sensor? Can you see if that fan is turning on start?
SOURCE: The furnace burners won't stay lit
Could be a couple things. First and easiest is to check your intake combustion air supply. If it is blocked by anything or just not enough flow, it will put out the flame. Next would be the flame sensor, usually a temperature probe near the flame front. If it's not reading an increase in temp within a pre-programmed time, it will kill the flame. It can be checked with a multimeter.
Good luck!
SOURCE: Carrier Weathermaker gas 8000 will not ignite
Your hot surface igniter may be bad. It may be cracked which would prevent it from starting the burner flame.
SOURCE: Airbag light flashes 1-8, stays lit
You have a bad Passenger Air Bag Deactivation Indicator. The bulb that shows when the passenger air bag is off.
Have seen alot of these go bad especially in police cars. The part number you need is 5W1Z-10A936-A.
SOURCE: Why Wont My Bryant Furnace Stay Running
You have a dirty flame sensor, it needs to be replaced
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