Check if there is 24v to that gas valve. if there is you need a new valve
SOURCE: Gas valve lockout
It means that the furnace isn't igniting and for safety the control board is preventing the gas valve from opening. Turn off the power to the furnace for a few seconds then observe what the furnace does in heat mode. Some furnaces will run the blower for a minute after you power it back up. After that see if the furnace tries to come on. If you are still getting the code then one of you high temp limit or roll out switches has tripped. Now is the time for a service tech. Make sure that you check you filter and air flow too. Low air flow means the furnace may be over heating.
The other thing is the hot surface igniter. Look closely at it with the power off. Do you see a white spot on the element or a crack. If so the HSI is bad. It's an easy replacement but DO NOT touch the carbon element with your fingers and be very careful handling it as it is EXTREMELY fragile.
SOURCE: gas heater won't ignite
I agree. Either the pilot flame is dirty and is not making good contact to heat up the bi metal strip on the pilot assembly, or the pilot assembly is defective. 90% of the time if you clean the pilot orfice and the pilot burner it will take care of the problem
SOURCE: carrier furnace burners will not light.if i blow
this sounds exactly like the problem. I replaced a gas valve yesterday in a Goodman furnace that had the same symptoms. I would check it or have it checked with a manometer before you replace the valve. If your inlet pressure is right and you cant get enough pressure by turning the adjustment screw clockwise, it is bad. LP should have @11-13inches of water column coming into the vavle and an outlet pressure of 7 inches of water column. Natural gas should have @5-7 inches coming in and an outlet pressure of 3.5 inches of water column
SOURCE: carrier furnance wont ignite. electric current to
Unplug the ignitor and check it for continuity. If it checks good see if it is getting power from the board.
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61
164 views
Usually answered in minutes!
×