Some of the most common evaporative cooler problems are listed below.



  • Loose motor. …
  • Bent motor pulley. …
  • Bent blower pulley. …
  • Excessive motor shaft end-play. …
  • Excessive blower shaft end-play. …
  • Excessive motor shaft wear.

Why is my evaporative cooler not turning on?

The most common reason the evaporative cooler may not be giving a good air flow is because of the circuit breaker and fuse of the evaporative cooler, which are installed by the manufacturer to prevent damage to the unit. If there is a power surge, you can be sure that the unit will not be damaged.

What causes a swamp cooler motor to overheat?





The motor in your swamp cooler is set to run at or below a specific voltage, preferably below. If too much voltage is put to the motor, it can overheat. Too much voltage can cause damage to internal wiring and circuitry.

How do you fix a swamp cooler motor?

Quote from the video:
Quote from Youtube video: And see what's going on – two Phillips screws. So there's the clamps there you can see where the Phillips screwed is took it out and the clamps just come right off the little hook.

What is the lifespan of an evaporative cooler?

What is the lifespan of an evaporative cooler? Evaporative cooling systems were built to last a long time. The average life expectancy is 15 – 20 years.

Why did my cooler suddenly stop working?

Water cooler troubleshooting



Very often if your water cooler is not working, the problem can be traced to the power supply. So as a first step, check that it is properly plugged in at the wall and the mains power is turned on. If it is switched on but not dispensing water, the next step is to check your water supply.

How do you fix an evaporative cooler?





Evaporative Cooler Service

  1. Clean and check for algae, sediment build-up and fungus;
  2. Clean and check the quality of the filter pads;
  3. Clean and adjust the drain system.
  4. Clean and lubricate the water pump;
  5. Clean and flush the water distribution system;
  6. Check, adjust and lubricate the fan motor and components;

Why does my swamp cooler motor keep turning off?

Swamp cooler keeps shutting off majorly due to motor overheat. Overheating occurs due to high belt tension, lack of lubrication or too high voltage. Inappropriately located or faulty thermostat may also result in continuous shutting of swamp cooler.

Why does my swamp cooler pump keep burning out?

You don’t want excessive water; you just want enough water to keep the pads consistently wet,” said Garcia. Garcia said when your swamp gets overworked in this heat, a pump could burn out or a belt could get worn out and snap. Keep an eye on it in case it needs replacing.

How tight should my swamp cooler belt be?

Quote from the video:
Quote from Youtube video: The deflection should be 1/2 to 3/4 of an inch.

When should you replace a swamp cooler?



2-3 years

When Do You Need To Replace Evaporative Cooler Pads? Generally, it is recommended to clean the pads at least once every year or twice a year (before and after use) and replace them after 2-3 years.

Do coolers need to be replaced?

Regular maintenance can guarantee that you go years before needing an evaporative cooler replacement. However, if it’s been a long time and it is not functioning at top efficiency, you may need to consider replacing it.

How long do swamp cooler pads last?



3-5 years

For homeowners that have Mastercool swamp coolers and a water softening system on their home, you should clean the pads annually and replace them every 3-5 years.

How often should evaporative cooling be serviced?

Regular evaporative air conditioning service is needed to make sure that your evaporative cooler works efficiently for a long time. The maintenance service must be done after your unit’s first year. After that, you can have it serviced on an every other year basis.

How do you prevent calcium build up in a swamp cooler?

You should clean the water pan reservoir at the bottom of the cooling unit at least once a month throughout the season to prevent minerals from building up inside. You should also wash the water curtains and filter every couple weeks with some mild detergent and lukewarm water.

Can I use vinegar in my swamp cooler?



Clean. Add a cup of vinegar to the cooler pan and let the vinegar cycle through the system for up to an hour. This will eliminate odors, mold, mildew and some corrosion, calcium deposits and other types of build-up.

Should I put bleach in my swamp cooler?

Bleach is one of the most common household cleaning chemicals, but it is not a good choice for your swamp cooler. Bleach should never be used in an evaporative cooler as it can damage the pans and possibly void your warranty. We recommend a cleaning solution made from a mix of vinegar and water.

How do you unclog a swamp cooler?

Brush out the inside of the swamp cooler.



Use a stiff brush or broom to sweep the inside of the swamp cooler. After you brush the debris and dirt loose, use a small vacuum that can be used on wet and dry surfaces to vacuum up the dirt. Debris can get inside the water pan.

Can I put essential oil in air cooler?

To do this, you can simply mix 15 drops of a scented essential oil with vinegar and get the mixture into a spray bottle. After cleaning the evaporative cooler, just spray the essential oil mixture into the machine and that will be all.

Why do air coolers stink?



When water is first introduced to the cooler the glue that holds the media together may emit an odor that smells offensive. This smell will go away after the media has been soaked well and rinsed. Run the pump long enough to wet out the pads and then dump the water. Repeat the process.

Can we use Dettol in cooler?

Easier maintaince & long life. What to do if there is a bad odour coming from Air cooler? A: Best option is to drain water out completely & let the Air cooler dry for a day, but another solution is to add a 50 ml of dettol/ or any non corrosive disinfectant into water run it for 15 minutes & drain the water.