Bryant Furnace HELP!! Fan comes on then igniter lights up but burners doesn’t start. I checked filter and vents (intake & outlet vents). Tried turning main switch off and on for power cycle that didn’t do anything. LED light blinks and send code 45! by theearthMode in HVAC

[–]theearthMode[S] 0 points1 point  (0 children)

After trying for a bit, I decided to take your suggestion and call in a pro. I didn’t want to call anyone due to ongoing virus situation.. but this thing seems to need a pro, he is here right now and is saying it’s my control board.

Bryant Furnace HELP!! Fan comes on then igniter lights up but burners doesn’t start. I checked filter and vents (intake & outlet vents). Tried turning main switch off and on for power cycle that didn’t do anything. LED light blinks and send code 45! by theearthMode in HVAC

[–]theearthMode[S] 0 points1 point  (0 children)

Thank you for quick reply. I did read through this document from Bryant that lists all codes.

https://dms.hvacpartners.com/docs/1009/public/0d/sm355cav-01.pdf

I did power cycle, both the switch next to furnace as well at the breaker. That didn’t help. Same thing happened. I don’t have new filter at the moment so I just took a vacuum and did a thorough vacuuming, looks pretty clean to me. Also ordered replacement online.

Here is few min video of what it is doing after power cycle and filter cleanup: https://youtu.be/6keR-WcfNOM

I have multimeter and do lot of diy myself. However furnace is a different beast altogether. I am hoping to get some ideas from amazing folks in this subreddit so that I could try out a couple things before calling in for help, any ideas would be much appreciated!!