I have a York Diamond 80. Will not light. Have done some research on here, cleaned the flame sensor, still no luck. Failed to ignite and locks out after three tries. What is the next step. What do I check? If anyone can help, great. Thanks

Hello, I have a York (forced air) gas furnace that's 9 years old. Every winter it seems like I have to replace the pressure switch ( round switch with 2 connections & air hose). I hear the blower come on, burners ignite and then within a few seconds they go off with the red light flashing 6 times....

York diamond 80 furnace 12 year old White Rogers controller Model 50A50 241 displays error code 8 1. I cleaned flame sensor - no change 2. I replaced flame sensor with new on - controller still displays error code 8 Is it time to replace controller board?

I have a york diamond 8o it haves a white rodgers broad model # 50a50-241 The led ligth flashes 8 times can you tale me what that error code is. Thank you for your help.

I have error code 6 on a Carrier qpc air condition. What does it mean?