I have a Bryant Plus 90i furnace flashing error code 43. I'm pretty good at fixing it so far. It's 17 years old and I've replaced the blower and inducer motors. All that seems to be fine. I just check the ususal. New filters are in to give max airflow. Checked and cleaned the condensate trap because it seemed like a bit of water was backing up and leaking from the lower condensing chamber. Checked and cleaned the intake screen up on top too. The manual I have doesn't say much about error code 43. Any suggestions? Thanks!

This is probably a code 34 not 43. When the led blinks; short is for the first number, long is for the second