Mud dauber nest in A/C fan motor
One of our A/C units started screeching loudly middle of night last week. Woke everyone up. Got up there next day and did entire maintenence on A/C unit (Coleman Mach 3) and sprayed lubricant around the fan shaft where the noise was coming from. Problem solved...until days later. Sound began again (loudest “nails on the chalkboard” sound you can imagine.) Got up there again. This time I dismounted the fan motor. What appeared to be gravel started falling out. Turns out, a mud dauber had built a nest inside the motor around the shaft. The more I shook, knocked, and spun, the more hardened mud fell out. Got as much as I could out, sprayed more lube at both ends of shaft, put back together, and running much smoother and no noise...Until that night. Now I’m considering just buying a new motor for $120ish, but before I do, considering trying to open up motor myself and clean out more thoroughly and shooting some air from a compressor into it to get it more thoroughly clean. Thoughts?
