Arrived on site to check out two problems inside of the store, the first problem is with a gas smell inside. While on site I also look at the hanging unit heater in the warehouse that is not operating, I cycled the unit and found that the burner's light however the fan motor does not operate. When the motor starts it makes a loud humming noise, I attempted to replace the capacitor to see if I could get the motor to operate temporarily but it does not work. I will place a request for pricing and availability on a replacement motor assembly for the unit.