Heating & cooling

Decommission and drain the evaporative (swamp) cooler

Water left in an exposed cooler or supply line can freeze and cause damage.

How to handle this maintenance item

  1. Shut off the water supply to the cooler.
  2. Drain the water line and reservoir as the manufacturer directs.
  3. Clean debris, inspect the drain and weatherize the unit appropriately.
Safety note
Roof-mounted units may require a professional if safe access is not available.

Before you start

Use the equipment manual and model-specific instructions as the primary source. Shut off power, water or fuel only when the manufacturer procedure calls for it and you are comfortable identifying the correct control. Stop if the condition you find is different from what the guide describes.

When to bring in a professional

This task includes work that may require specialized tools, safe access, combustion/electrical knowledge or a qualified inspection. Use the steps above as the homeowner checklist and preparation guide, then hire the appropriate professional for the higher-risk portion.