Question about Mastercool 67680 Evaporative Cooler Air Conditioner

1 Answer

Mastercool air conditioner

When it goes on it makes a vibration sound, almost like wind blowing thru it. Seems like after awhile it isn't a constant sound, the sound then comes & goes

Posted by on

  • busdriver54 May 09, 2009

    Our cooler makes a vibration noise that almost sounds like a low flying aircraft.  It is almost unbearable at times.  any suggestions?



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

If it is indeed a true vibration, it could be a number of things. I have seen bad bearings do this off and on as the cooler runs. Could be something going wrong with the blower motor. There are several things that need to be checked to properly evaluate the problem you are describing.

Posted on Aug 07, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a MasterCool evaporative cooler on the roof of my house. Its making a loud squeaky sound when I turn it on. Maybe something is rusted because my cover blew off during a storm and I didn't...

If you were to stand at the condenser for let's say 30 minutes, would the sound be constant throughout or would it go away and come back and few times. If it goes away and come back, it may be caused by your compressor. If it's constant, it may be the condenser fan. Now, if you're convinced that both are fine, then the squealing is probably caused by vibrations from the chassis. The fact the you have a makeshift cover may give you hints as to where the sound is coming from.

Aug 11, 2011 | Mastercool Portable Air Conditioner

1 Answer

Air conditioner isn't blowing cold! Fan works okay but air isn't cool. Can hear hissing sound that sounds like normal compressor function. Do I need a coolant recharge?

You will need the condenser coils repaired before you can charge it. These come from the factory sealed and they should not ever need a charge unless you have a leak. The hissing sound is more likely air in the system being pumped by the comressor and it is coming out a hole in the coils.

May 29, 2011 | Frigidaire FAH126N2T Thru-Wall/Window Air...

1 Answer

When the wind blows my motor stalls and blows the breaker. Please reply slowly as my english in not so good.

The horse power of the motor is either to small or you can also adjust the motor pulley, loosen the allen set screw on the motor pulley, turn it in one or two full turns. The readjust the belt, there will be less airflow, but the amprege draw on the motor will be reduced.
Have a great day.
Paul Gibson

Apr 30, 2010 | Mastercool 67471 Evaporative Cooler Air...

1 Answer

Works fine but started making a blowing sound kind of like a rush of air

Maybe the unit has switched to a higher speed, does it have a thermostat that changes speeds automatically?
Make sure the pads are not plugged up. Make sure you do not have a damper somewhere that has partially closed.

Jul 30, 2009 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

My motor switches from high to low over and over again

It sound like the low speed winding in the motor is bad.You will need to get a new motor.

Jul 24, 2009 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

Vibration noise

unbalanced mounting or unbalanced fan. check how it stands and make adjustments.

May 12, 2009 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

Master cool

Make sure you have enough exhaust openings in the house. Turn on the unit with an outside door open and see if the result is the same. To me it sounds as if you have too much back pressure and not enough ventilation.

Aug 29, 2008 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

Noise on mastercool

had the same symptoms and found that tightening the squirrel cage set screws eliminated the noise.

May 23, 2008 | Mastercool 67680 Evaporative Cooler Air...

1 Answer

Haier ESA 3185 AC won't cool; makes escalating loud vibrating noise near front panel/ filter

Have someone check the run capacitor of this unit. If the run capacitor is bad over shorted it can cause the unit to run and short cycle on a current overdraw. This makes for an electrical imbalance in the compressor motor. Next step is the compressor is faulty.

May 16, 2008 | Haier ESA3245 Thru-Wall/Window Air...

Not finding what you are looking for?
Mastercool 67680 Evaporative Cooler Air Conditioner Logo

Related Topics:

431 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mastercool Heating & Cooling Experts

Bill Long

Level 3 Expert

588 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers


Level 1 Expert

21 Answers

Are you a Mastercool Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides