Question about Mastercool 67471 Evaporative Cooler Air Conditioner

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Master cool blower motor?

It seems to be working but it i can hear it clicking alot?

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If this is a regular roof mounted unit then I will suggest that the motors internal clutch could be failing. If your unit is ducted then it could be something in the duct like paper. Sometimes as the wind flows through flex ducting it can also make this sort of noise.

If this is a portable Evap cooler then there is a rod that extends from the main blower to the pump assembly. You can probably see it turning with a flash light. If it is wobbling then it could be the pump or gear. As usual make sure the unit is clean and all the water ways (including the hoses) are clear of obstructions.

Posted on Jun 25, 2008

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Open up the blower compartment and spin the blower by hand with the power off...you should be able to hear if the bearings are rough or if the blower is hitting something... then you will know what you need to fix...

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dear sir

check pcb board or that cable which one caring electricity till blower check auxiliary relay who is responsible to make active supply for blower it can be faulty you can check by a electrical teaster when your hear sound of active of relay then you check blower electric connection there is electricity or not if there is electricity and blower won,t run it,s mean blower motor /capacitor is faulty if there is no supply for motor blower then it,s mean PCB bord is faulty and it,s need to repair replace.it,s up to you to repair by your self or take help to a technician .

thank you
hope answer the question
please vote!

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