Question about Mastercool 67680 Evaporative Cooler Air Conditioner

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Motor does not always start and only hums. Manual push ok.

Working on my son's Master Cool and the cooler works only with manual help of turning the carriage... Once going it works fine... However, that is not the way I want it to work... Have heard mention of a starter being bad on the motor but on inspection, have found a large capacitor... Is that the starting mechanism I need to change? The motor pulley is adjustable, so I have made it much smaller... It works the first time, but after testing it again, when the motor is warm, I need to help it manually again...
I sure would like some help here.... I am usually the 'go to' guy for fixing things, but right now I am stuck... Any help out there?

RADelgado@verizon.net

Rob

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There are two main reason
1- start capacitor
2- may you tight the belt too much.

Posted on Sep 05, 2009

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