After initial fill, Speedaire motor just hums
by Anthony LaGrasta
(Mission Viejo, CA)
Great site, thank you!
After my small Speedaire unit fills, it shuts off correctly. After some use, it tries to fill up again, but only results in a hum.
Without the belt attached, it runs fine.
I replaced the start capacitor, but no change.
I do not believe this unit has an unloader valve.
Could it be the power cord has deteriorated and once warm from the initial fill up, causes too much resistance to power up the motor again?
Once cool, it starts and runs again.