Question about Mastercool Heating & Cooling

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We recently bought a MasterCool P700 evaporative cooler. We discovered that we could turn off the display light (makes sense with the large blue light lighting up the entire room at night) by hitting the power button a 2nd time after choosing selections (cool, sweep, etc.) However, it works only on an intermitent basis. sometimes, hitting the power button the 2nd time simply turns the cooler off. This feature is not covered in the manual. Please advise.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: Night Service Button

Sounds to me like "inspect" might be the button programmed on the phone. IF the button is labeled "night" then you can reprogram the button.

press "SPKR # 0 0"
Press the button labeled "Night"
Press "* 3 9"

Then press the "home" or "exit" button.

See if that works...

Posted on Dec 21, 2007

  • 61 Answers

SOURCE: Sony Wega 40" TV will not turn on, standby light blinks 6 times repeatedly

Hello,For model KV-40XBR800,

Pls check following area.

Low HV Shutdown:
On the D Board.
Check IC8004/pin 7 should be 7.4v.
Check IC8006/pin 2 should be 2.5v if lower will trigger shutdown by causing pin 1 to turn on.
Check IC8006/pin 3 reference voltage 2.2v.
IC8006/pin 1 normally at 0v. If high
turns D5007 ON which turns the latch circuit Q6532,
Q6530, and Q6527 ON and turns the AC relay RY6501 OFF.

And NOTE: 6 blinks also can be Low B+ protection.

Unregulated 7.5 v from the power supply to 5v reg IC504 on the A Board. 5v to M Board Q2314

to CPU IC2300/pin 43. If 5v missing set will shutdown with 6 blinks.

Good Luck
Dals123

Posted on Oct 15, 2008

  • 1 Answer

SOURCE: AC pad not fully getting saturated with water

1. Make sure the pump is getting plenty of water.

2. Make sure the pump is working.

3. Check the pvc pipe with drip holes are not plug. (above the pads )

4. Check the pads directional arrow that should be facing up. When pads are initially installed you can see arrows on the pads. The arrows should be in the up direction. That will allow the pads to get saturated more efficiently.

I hope these steps help you.

Jerry,

Posted on May 08, 2009

Ed Phillips
  • 11 Answers

SOURCE: New Mastercool pads smell bad

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.

Posted on May 31, 2009

co7196
  • 3433 Answers

SOURCE: water pump size and over saturated pads

Louis, The cooling does not come from the volume of water running over the pads. It cools by cooling the air passing through the wet pads. So, Yours is an impeccably logical argument that leads to a false conclusion. Bigger is not better in this caThe fishy smell is from the matting (pads) when kept saturated, Molds and algae will form if there is too much water also.. Best you get the original size pump Good luck and stay cool - Ned

Posted on Jul 26, 2009

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