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Thread: Failed 2 speed AO Smith Motor

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    Failed 2 speed AO Smith Motor

    I have been using a 2 speed AO Smith motor on a Hayward Superpump body for about two years now, and the other day it stopped running. It will spin up on the high speed terminal, then slowly reduce in speed, then click off (thermal cutoff?). Connecting power to the low speed terminal, the pump does not even spin. I've swapped my single speed motor back in for the time being, so water is being turned over in the pool. Is it possible to fix the motor, or is the failure state considered terminal?
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

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    bobodaclown's Avatar
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    Re: Failed 2 speed AO Smith Motor

    Do you have access to a multi meter? When you soon the motor shaft does it turn smoothly?
    It could be as simple as replacing bearings.
    Did you use a new shaft seal?
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    bobodaclown's Avatar
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    Apr 2011
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    Re: Failed 2 speed AO Smith Motor

    Check out this link good reference materials
    http://www.troublefreepool.com/showthread.php?t=83947
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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