Bob R Two Riviers , WI January 02, 2020 It wouldn't always ignite. The burner tube was rusted and separated from its mount. It was a dangerous condition with the other end ready to fall.off the gas orifice. I replaced the burner assembly. Also noticed a loud vibration. Found the hub worn and loose on the blower wheel. Awhile back the gas valve solenoid coils were not always opening the valve, so I ordered them too. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes