Question about Mastercool 67471 Evaporative Cooler Air Conditioner

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I have a side discharge master cool evaporative cooler . The unit was working well last season and now it does not. I checked proper voltage at circuit board incomming power and it was fine. When I place the control unit to "Fan", I hear a small click in the circuit board, but nothing happens. Can you help?Thanks

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Without being able to see it for myself I would say your motor is blown. Have you checked the capacitor?

Posted on Apr 04, 2011

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You give no model, but if you disassemble the unit (only the top panel) at the water distribution tube and expose it you can see what's going on. Water flow will be minimal.

The tube disconnects from the water supply tube at one end.

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Hello,
A portable air conditioner may not cool for several reasons. Check the filter by removing the unit's grill and clean the filter.
Also check for clogs in the evaporator or condenser coils by light vacuuming. Make sure the evaporator isn't frosted over, but if it is, allow it to defrost and normal operation should resume.
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