Question about Mastercool 67471 Evaporative Cooler Air Conditioner

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I have a mastercool cooler and i need to clean the pads. in the past i have tried soaking in a clr solution but it dont help. any tricks to do this would be great. the calcium and other deposits just stay rock hard when i try to clen them. i run a clean machine with it and also have a inline water filter. the pads are expensive to replace every year ,plus they have a 10 year warranty. im only getting about 50% air flow right now. thank you.

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CLEANING PADS
My pads are 3 years old. (1) I tried soaking them in Vinegar & water which helped. (2) I then sprayed them with a hose nozzle, that helped also. We live in AZ so the dust storms can be horrendous and I still had build up. (3) So I took a variable speed drill and a wire brush and removed more. (4) Then ,as these filters are made of a wood by product, I took a belt sander ...they look good now. (5) Now when I reinstall them I am going to change the pads so pads facing outside will be facing inside, keeping the 45 degree forward and down. This last step I haven't tried, but it should work.

Posted on Apr 05, 2012

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You can try soaking them in a solution of 70% White Vinegar and 30% Bottled Distilled Water. At minimum you will have to soak them over night. If it appears the deposits have not cleared out in that time frame, soak them longer and rinse with Distilled Water.

Posted on Mar 18, 2011

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Posted on Jan 02, 2017

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SOURCE: i have a mastercool cooler.

You can try soaking them in a solution of 70% White Vinegar and 30% Bottled Distilled Water. At minimum you will have to soak them over night. If it appears the deposits have not cleared out in that time frame, soak them longer and rinse with Distilled Water.

Posted on Mar 18, 2011

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PLEASE TELL ME WHAT DOES A MASTERCOOL CLEAN MACHINE PURGE PUMP DO?


From the ad below, it replaces old water with fresh. ------------------------------------------------------------------------- » HVACR» Air Conditioners» Evaporative Cooler Accessories Universal Cooler Cleaning SystemBrand: MastercoolModel: CM120ASKU: 47495 34252_300.jpg

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No Longer Available Mastercool CM120A Universal Cooler Cleaning SystemTotal Ratings: 0
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Review this item transparent.gif Product Information Item Cleaning System Function Timer-actuated, Automatically Removes Mineral-laden, Dirty Water every Six Hours and Replaces with Fresh Water, Reduces Scale Deposits and Leaves Pads Cleaner, Saves Up to 70 Percentage of the Water Weight 3.10

  • Replacement Motors and Accessories
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  • Save up to 70% of the water used in bleed-off cleaning systems.
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  • Uses: For residential size coolers only.
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Universal Cooler Cleaning System, Clean Machine Pump Cooler Flushing Device for Residential Size Coolers Only

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I have a mastercool cooler. i have tried soaking the intake side of the pads in a clr solution to clean the calcium and other deposits in the past with no luck. new pads each year is expensive. any tricks...


You can try soaking them in a solution of 70% White Vinegar and 30% Bottled Distilled Water. At minimum you will have to soak them over night. If it appears the deposits have not cleared out in that time frame, soak them longer and rinse with Distilled Water.

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I am a single woman trying to prepare my mastercool for winter. I don't know how to remove the pads, so if insructions could be sent, it would be greatly appreciated. I don't know the size of the cooler,...


Is it a side draft or downdraft cooler? My instructions simply say to cover the unit, disconnect the power and drain the water for winter. They don't suggest removing or cleaning the pads until spring. If you're ductwork also is connected to your furnace, and you don't have a cookie sheet(piece of sheet metal that fits in a slot beneath mastercool unit or along the inside if it's a side draft cooler) then besides covering the entire unit you cn probably cover the blower, also called the squirrel cage, with a canvas cover.

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The pads you need are at least 8 inches thick. If you have the contractor model, then the pads will be 12 inches thick.
Find a distributor in your town that sells cooler parts, if they dont have them, some of the big home improvement stores carry the pads for your cooler.
Make sure you are using a bleedoff or a dump pump to eliminate the hard water out of the cooler. If you keep those pads clean, they wiil last for many years.

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The cellulose pads in a mastercool are glued together and usually the adhesive is what you smell. It may take a while for it to go away. Strange as it may seem, as the pads get more mineralization and you use it more the smell will go away. Do not use a cooler for your whole house without plenty of exhaust through a window or an updux. Coolers work best when there is plenty of freely moving air.

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