Ok, so here’s my problem: I have an oil burner for baseboard heat. It’s a Weil furnace with a direct vent to the outside. On Xmas morning, I noticed White smoke coming from the vent and the furnace kicked off. I reset it and same thing. After a few days frozen pipes and multiple visits from a repair guy, it was found that the coupler between the motor and pump was stripped. I read this is a common thing. He replaced the coupler. A few days later he came back to check on everything and told me the pump had to be replaced. He replaced the pump. I got leaks from the pump into a tray I put underneath it. It lasted (waiting for his return) for a week or so. I saw another puff of smoke yesterday and the furnace kicked off again. When I reset it, it sounded like a mess. The repair guy comes back and tells me the coupler is shredded. Tries to talk me into a whole new burner on the front which would be $1200. Instead he changes out the pump and “confirms” the shaft was leaking and that was the problem. The furnace is running now, but who knows for how long. There are a few things that don’t make sense here: 1) Why would white smoke come from a bad coupler? It would be the opposite I would think. I thought white smoke comes from too much fuel spraying on things that are hot and not igniting. 2) Is it common for a pump to fail or be defective? 3) Why would a leaking shaft cause a coupler to break? Thanks!

Hello all, I have a Bryant 395CAV, it looks like all the "80 plus”units I’ve seen on the internet. My heater trouble this year started with a burned out blower motor. I replaced the motor, and ever since have had “code 33” issues. At first, the furnace would only run while the metal cabinet was open. When closed, the furnace cuts off, but the blower keeps running with the error code 33. As if it were not getting enough air. I let it run through the weekend this way until I could call the place I bought the motor to confirm the specs and wiring were correct. And because it was 10° outside. Even with the cabinet cover off, it will still turn itself off periodically, and show the error code 33. At present the code 33 usually starts a minute or so after powering on. Occasionally it will start the burners, but they will only stay on a few minutes. I’ve ordered a new flame roll-out limit switch, which should arrive today. The current one is well-corroded and I’ve manhandled it quite a bit as well. After that I’m out of ideas. I’m concerned that a new switch won’t solve it. Both motors are 1/3hp 115v, 1075rpm. The old motor was 4speed, 5.8a The new motor is slightly more efficient, 3 speed, 5.2a Filters are fine, not clogged. Could the motor speed be an issue? The motor shop assured me that a .6a difference would not cause any change. I am wondering if the speeds of the motors are different enough to create a lack of air. Would really appreciate any ideas, it's cold inside! Thanks