Upon arrival, system was operating with no unusual noises heard. Initial inspection of furnace shows that the collector box has started leaking and should be replaced to prevent future water damage to other components. During first fire off test, the blower and inducer motors came on with no unusual noise. After about 20 seconds, the blower motor started to make a high pitched whining noise. Noise lasted for approximately 10 seconds before going away. The noise is due to bearing failure in the motor. Blower motor is prone to fail at any moment and urgently needs replaced. System is currently operating in heat.
