Question about Mastercool 67471 Evaporative Cooler Air Conditioner

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How do i drain a mastercool of water manualy?

I need to drain the water out of the cooler,how would i go about this??

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Remove drain pipe from water pan. You can usually turn it counter clockwise. When drained, clean with fresh water and replace pipe buy placing pipe dope or teflon tape to avoid leaking.

Posted on May 10, 2010


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Mastercool Adobe P550A portable water cooler. Where can I get a user manual?

try searching on line for a water dispenser manual rather than a water cooler manual

Jun 11, 2015 | Mastercool Heating & Cooling

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There is a float in the evaporative cooler that will let water in when the trough is low and then when it fills, should shut the water off. I would check to make sure that the float arm is not corroded or misaligned.

Aug 17, 2011 | Mastercool 67471 Evaporative Cooler Air...

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Apr 04, 2011 | Heating & Cooling

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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.

Oct 09, 2010 | Mastercool 67680 Evaporative Cooler Air...

2 Answers

Why does there have to be a 'bleeder' line from the drain pan of a Master Cooler? Shouldn't the float keep the optimum amount of water in the unit?

The previous answer is wrong. He describes an overflow line not a bleeder line. An overflow line is not optional for the reason previous answer describes except that if you go away for vacation or other reason the water to the cooler should be shut off.

On the other hand a bleeder line is optional but highly suggested.
The purpose of a bleeder line in any application like brake systems and evpaorative coolers is to get rid of some unwanted elements. In brake lines air is the unwanted element. In evaporative coolers it is particles, scale and mineral build up. This happens because the constant evaporation ( the whole principle of water coolers) leaves behind particles, scale and mineral. without a bleeder line these things build up in the water reservoir. You flush your system manualy with a bleeder line or with the right control box and a separate pump it can be done automatically. If you do it manually, let it run long enuff to discharge at least as much water as your reservoir holds. direct this flow to plants so a not to waste the water.

Jun 01, 2010 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

The drain hose pumps out too much water.

Yes it is if it is very humid and hot you know your unit is working very good. You can take the hose out farther from that spot. Set up a bird bath and let the birds enjoy a bath. just a idea.

May 09, 2010 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

Leaking water at the bottom of tank

sounds like u need to add a p trap to stop the air sucked through the drain {pulling the water back}

Apr 14, 2010 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

We have a Mastercool II & it was installed ~ 3

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.

Jul 20, 2009 | Mastercool 67680 Evaporative Cooler Air...

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