There is no heat, and water is on the floor from a plugged condensate trap. I rinsed out the trap, but it kept getting a 43 code, and the low-pressure switches did not open. I found water in the pressure switch due to the trap overflowing. Because of this, the pressure switch is failed and needs to be replaced. Given that the furnace is 15 years old, I would recommend getting it replaced. Quoted replacing pressure switches, order from Auer steel part number HK06MB011. Shaun to come out and quote furnace.