Maintenance & Care

What maintenance is needed at the start and end of each season?

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Proper seasonal maintenance extends your cooler's lifespan and ensures efficient operation. Here's a comprehensive checklist:

SPRING STARTUP CHECKLIST

Before the first hot day, complete these steps:

1. Inspect and clean

  • Remove the cooler cover (if installed)
  • Clean out any debris, leaves, or animal nests
  • Vacuum or brush out the interior
  • Scrub the water reservoir/pan

2. Check and replace pads

  • Inspect pads for deterioration, mineral buildup, or mold
  • Replace aspen pads annually; check rigid pads for damage
  • Ensure pads are properly seated with no gaps

3. Water system

  • Reconnect the water supply line
  • Check the float valve—it should shut off when reservoir is full
  • Inspect and clean the pump and intake screen
  • Clear any clogs in water distribution tubes
  • Turn on water and check for leaks

4. Mechanical components

  • Inspect the belt (if belt-driven) for cracks or wear
  • Check belt tension—should deflect about 1 inch when pressed
  • Lubricate motor bearings if equipped with oil ports
  • Verify the motor runs smoothly without unusual noise

5. Test operation

  • Run pump only first—verify water flows evenly over all pads
  • Run fan only—check for vibration or noise
  • Run both together and verify cooling

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FALL SHUTDOWN CHECKLIST

Before freezing weather arrives:

1. Drain completely

  • Turn off water supply
  • Drain the reservoir completely
  • Open any drain plugs
  • Run the pump briefly to clear water lines

2. Disconnect water

  • Disconnect the water supply line
  • Store the line inside if possible
  • Cap the connection point

3. Protect from winter

  • Close the damper (if equipped) to prevent cold air infiltration
  • Install a cooler cover to keep out debris and moisture
  • For window units, consider removing and storing indoors

4. Optional professional service

  • Have a technician inspect before storage
  • Address any needed repairs before spring
Printable seasonal maintenance checklist for swamp coolers - spring startup and fall shutdown procedures
Seasonal Maintenance Checklist: Spring Startup & Fall Shutdown

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