A/C just started making a deep hum...
I installed a 2nd A/C in the bedroom last summer, a Mach 8. I replaced the fan blade to make it quieter and it's worked great all year. But just recently...just as you're turning the A/C on it sounds...
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I would also check the 120VAC voltage... It may be too low to start the Air Conditioner... If the 120VAC voltage is ok then I would look at the Air Conditioner START CAPACITOR to see if it looks normal - Not bulging etc...
Roy Ken
Roy Ken
