Question about Mastercool 67471 Evaporative Cooler Air Conditioner

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Motor sometimes will run and sometimes not

I put a new motor on my master cool. the low speed make a lot of nosie like is is trying to stop and go. sometimes the cooler will not start up.
the new motor said I may have to ajust the pully to make it run I turned the pullyout one full turn. It ran good for about 5 day now it will not start again all the lights come on on the thermastat but cooler will not come on.

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Sounds like the high and low speeds are trying to run at the same time are you sure you put the wires on the new motor on the same terminals

Posted on Jun 03, 2009

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If the motor is still turning, good. It is not burned out. IF the motor is not turning with the unit on, it is either a reset switch (not all units have them) or the motor is burned out. New motors need to have the pulley adjusted so it is not too tight or not too loose.

Posted on May 31, 2009

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